Beerus, God of Destruction, has awoken after a 39 year slumber. Having had a dream about “Super Saiyan God”, he sets out in search of this mysterious Saiyan. After visiting Kaiō, and eventually ending up on Earth, Goku must find a way to summon the power of “Super Saiyan God” and battle the irritable god before he destroys the Earth!
Six months after the defeat of Majin Buu, peace has returned to Earth once more. Chi-Chi wants Goku to get a job, so he starts working as a radish farmer, although he really wants to train. Meanwhile, Gohan has become engaged to Videl, and Goten wants to give them an engagement present. He asks Trunks for advice and they go off searching for a present.
Vegeta goes out with Bulma and Trunks to a resort area! Bulma and Trunks are very happy with this unexpected family time together! But even as he's doing this, Vegeta is bothered that Goku is off training?
Fearing what might happen now that the God of Destruction is awake, the Kaiō-shin urge Kaiō-sama to ensure that Son Goku never finds out about Beerus. However, Goku overhears the conversation and becomes curious. Back in his temple, Beerus and Whis continue their search for the Super Saiyan God. They soon learn of Son Goku and his feats and decide to pay him and Kaiō-sama a visit. Meanwhile, back on Earth, Goku's friends and family members being gathering on the cruise ship for Bulma's birthday party, except for Vegeta who is still training to overpower Goku and everyone else in the Universe.
With all guests now gathered, except for Son Goku and Vegeta, Bulma's birthday party gets underway. Trunks shows Son Goten where his mother hid the bingo tournament grand prize – the Dragon Balls. Not far off from the ship, Pilaf's Gang, now poor and hungry, are trying to get by until they find the Dragon Balls and make their wishes come true. When his Dragon Radar picks up a signal coming from Bulma's ship, Pilaf and his henchmen hastily board the ship, with Trunks and Goten's help. Meanwhile, on Kaiō-sama's planet, Kaiō-sama explains to Goku who and what exactly Beerus is and that for every benevolent God there must be a malevolent one, in order to keep the Universe in balance. Just as he finishes, Beerus and Whis arrive.
Beerus and Whis arrive on Kaiō-sama's planet and detect Goku's presence. While he is initially disappointed that Goku does not know what a "Super Saiyan God" is, he agrees to test his strength in a sparring match. Goku attempts to fight him in all of the Super Saiyan transformations but is outclassed every time. Beerus and Whis head for Earth shortly afterwards while Kaiō-sama uses his telepathy to warn Vegeta ahead of their arrival.
Beerus and Whis arrive on Earth, where Bulma's birthday party is underway. Initially, Vegeta is paralyzed by Beerus' presence. He recalls a childhood encounter with the deity a long time ago when Beerus visited Planet Vegeta and threatened his father, King Vegeta. Shortly after, Bulma pops up. She invites Beerus and Whis to join the party. Beerus gladly accepts her offer and enjoys the food available. The two start mingling with the other guests, while Vegeta tries his best to ensure that Beerus remains calm. Whis soon learns of pudding, which he finds to be extraordinary delicious; so much so that he urges Beerus to have some too. However, it turns out Majin Boo took all the other pudding cups for himself and refuses to share. Angered by Majin Boo's insolence, Beerus attacks him.
Beerus effortlessly disposes of Majin Boo, while Vegeta stands by in awe. Vegeta tries to persuade Beerus to calm down and enjoy himself, but he refuses to listen. Trunks and Goten fuse into Gotenks and attack to no avail. Powerless to do anything else, Gotenks starts insulting Beerus for which he is promptly punished. Piccolo, Tenshinhan, and Android 18 try taking on Beerus with little success. Majin Boo attacks again but is unable to land a single hit. While observing the battle, Dende realizes what Beerus actually is and immediately informs Piccolo. Before Piccolo is able to warn him, Gohan powers up and charges towards Beerus. Using Majin Boo as a weapon, Beerus repels Gohan, taking them both out. Being the last one standing, Vegeta confronts Beerus, but he is swiftly brought to the ground. Beerus tells Vegeta that he is disappointed with him; that he is just as weak as his father was. Just as Beerus is about to finish Vegeta, Bulma walks up and slaps him for ruining her party. Beerus retaliates in similar fashion. Seeing Bulma struck infuriates Vegeta; he explodes and powers up immensely.
Having powered up, Vegeta charges towards Beerus. He manages to land a few punches before Beerus, who was using only a fraction of his power, knocks him out. Just as he is about to destroy Earth, Beerus has a sudden idea. He decides to give the Earthlings another chance at saving Earth. Meanwhile, fearing for their lives, Pilaf Gang disembark Bulma's ship on a rowboat and sail away. Thinking he is the same as Majin Boo because of his pink hue, Beerus picks Oolong out of the crowd and challenges him to a game of janken to decide the fate of Earth. Oolong manages to draw twice, but Beerus eventually wins and proceeds to power up his attack. Just as Beerus is about to fire, Goku chimes in saying he has thought of a way to find out about the Super Saiyan God – by summoning and asking Shenlong.
Goku gathers the Dragon Balls together and summons Shenlong who is startled by Beerus' presence. Shenlong quickly explains that the Super Saiyan God is not a person but a legendary transformation that only kindhearted Saiyans can achieve by fusing their power together. The Saiyans attempt to transform Goku but fail, as they are one Saiyan short. Growing tired of waiting, Beerus starts preparing his attack to destroy the planet. Suddenly, Videl jumps in front of the Saiyans. She says that there is one more Saiyan who might be able to help them – her and Gohan's unborn child. The Saiyans and Videl attempt the transformation again and manage to transform Goku into the Super Saiyan God.
Now a Super Saiyan God, Goku confronts Beerus. He is amazed by the immense power his body has gained with the transformation, so much so that he is initially unable to fully grasp its newfound potential. Fighting with Beerus, Goku manages to grow gradually into his new form. Seeing as how Goku might turn out to be a worthy adversary after all, Beerus decides it is time for them to unleash their true power and have a real battle of Gods.
Having somewhat got a grip on the Super Saiyan God form, Goku initially manages to keep up with Beerus, but he soon realizes that his opponent is still not fighting at his maximum. It is revealed that Beerus is doing so only to motivate Goku to catch up with him. To that end, Beerus drags Goku to space where he swiftly knocks him out. Goku comes crashing down back to Earth and ends up in an ocean. Amazed by such power, Goku gets excited and powers up, healing himself in the process. Willing to have another go, he flies out of the ocean and dashes towards Beerus.
Goku and Beerus continue to fight in space. As both of them power up and clash, the universe begins to crumble under the power of the gods. Celestial bodies get crushed due to the shockwaves. Meanwhile Old Kaiō-sama reveals to Supreme Kaiō-sama that with three more blows the whole universe would be destroyed along with Beerus and Goku. Goku, on landing the third clash with Beerus, unknowingly saves the universe's collapse by balancing Beerus's attack with his own. Beerus gets enraged and uses his Atomic bomb attack on Goku. Goku uses the Super Saiyan God power to power up his Kamehameha to keep Beerus's attack at bay.
The Kaiō-shin are surprised that the Universe is still intact following the battle, but they fear the worst is still to come. On Earth, Vegeta, Whis, and the others are still standing by, watching the battle. Whis is surprised by the Super Saiyan God's power and its ability to keep up with his trainee. In space, Goku struggles to keep up with Beerus' attack, which ultimately ends up in a massive explosion, blinding everyone on Earth. Shortly after, the light clears out, revealing everything to be as it was prior to the explosion. Beerus explains that he used his full power to negate the explosion, thereby saving the Universe. Seeing it as a perfect opportunity to boast, Mr. Satan arranges to have him be falsely credited with saving the planet yet again. Despite being at his limit, Goku remains calm, which annoys the God of Destruction. Beerus thinks Goku might have a strategy that he has been hiding which Goku promptly denies, saying that everything he had been doing was improvised as they fought. The Gods quickly power up and continue fighting, but this time, both at their limit. However, as soon as they start, Goku loses his Super Saiyan God aura, reverting to the ordinary Super Saiyan form. Upon noticing that, Beerus decides to quit, thinking it is pointless to fight an ordinary Saiyan. Goku, however, does not notice and keeps going at it. Able to sense Goku's energy, Whis assumes that the battle has concluded and that Goku lost, but Piccolo begs to differ. Surprised that Goku is still able to hit him even after losing his God form, Beerus surmises that Goku's body has adjusted to the Super Saiyan God power, making him stronger in his ordinary form. Goku proclaims that, with or without the Super Saiyan God form, it is still him that Beerus is up against, and the two resume their battle.
Now with only a Super Saiyan form at his disposal, Goku powers up and attacks but to no avail as Beerus knocks him out effortlessly. With Goku knocked out, Beerus prepares to destroy Earth. In a final effort to stop Beerus, Goku once again powers up and charges his Kamehameha attack. Goku manages to prevent Beerus' attack, but he completely depletes what was left of his energy in the process. He comes crashing down to Earth onto Bulma's ship, where Vegeta manages to catch him. Beerus lands on the planet shortly after to finish what he started, but he suddenly falls asleep. Whis explains that Goku must have tired Beerus out and that by the time he wakes up he will have forgotten about their trip to Earth. Beerus who was faking his sudden sleep spell and Whis leave for Beerus' planet shortly after. With Earth safe again, Goku decides to relax and enjoy the party.