It's New Year's, and Penelope and one of the chickens become friends. Will the Ham-Hams and chickens work together to save Penelope and the baby chicken?
Maria writes a letter to her grandmother, and Hamtaro and Bijou help Maria to get her letter to her grandmother.
The Ham-Hams meet Barrette, a hamster who can knit. Barrette has a crush on Hamtaro and she sees Bijou as a rival. Meanwhile, Penelope is sad that Pashmina is not with the Ham-Hams. Will Barrette be friends with Penelope?
Sandy's owner Hillary messes up gym training and Sandy gets worried. Can the Ham-Hams help Hillary master gym again?
Hamtaro wants to go outside with Laura, but she leaves him behind because she thought he might be getting a cold. But Hamtaro hears her say that he was acting weird, which hurts his feelings, and he leaves on a journey with Jingle to find "the cloak of the wind".
It's Valentine's Day, and the Ham-Ham girls plan on what to give the Ham-Ham boys. Sandy wants to give her sweetheart Maxwell something, Boss thinks Bijou will give something to Hamtaro, and Stan wants to impress Flora. Will the Ham-Girls and Ham-Boys get what they desire?
The Ham-Hams think Hamtaro has gotten stuck in a painting and try to get him out.
The Ham-Hams visit Pepper, and Oxnard and Pepper are emperor and empress in the Doll Festival.
Maxwell's owner Melissa is upset that Zack laughed at her. Maxwell and Howdy start to fight. Can they forgive each other so Maxwell and Howdy can become friends again?
The Ham-Hams meet Ook-Ook, a hamster dressed like a monkey, and Buster, a security guard hamster who is pursuing Ook-Ook.
Sparkle becomes jealous of Bijou because she believes Bijou is prettier than her (She starts believing this when Bijou was able to get Hamtaro's attention but she couldn't). She begins to like Hamtaro and tries to capture his heart to make Bijou jealous.
Panda's owner Mimi wants to see cherry blossoms.
The Ham-Hams meet mischievous triplet hamsters called the Hambini Brothers.
The Ham-Hams and their owners visit Dylan's farm, along with Travis and Roberto.
The Ham-Hams make too much noise while playing, and they upset Boss, who is trying to sleep. So the Ham-Hams want to make a new room for Boss to play and relax in.
Laura and Hamtaro visit their old hometown, and see Laura's old friend Claire.
Bijou, Pashmina, Sandy, Penelope, and Boss want to help Flora. This made Stan, Howdy, Dexter, and Maxwell fall over; Bijou, Pashmina, Sandy, Hamtaro, and Oxnard dress as nurses.
The Ham-Hams think that Auntie Viv is a mother figure, so they pamper her for Mother's Day.
Sparkle thinks that cameramen got an exclusive of her having a romance with Hamtaro, but they were really just old men and women taking pictures of plants. But Sparkle is convinced there will be a scandal and she moves into Boss's room in the Clubhouse. Will she ever go back to Glitter?
Robo-Joe is entered in a competition against another robot. Can he win?
Omar visits and takes a rest, and meanwhile, Snoozer rides around on Omar's turtle.
The Ham-Hams search for a hydrangea on a rainy day.
The Ham-Hams take care of a caterpillar they saved from the Chicky-Chickies.
Laura and Kana run away with Hamtaro and Oxnard. Boss, Howdy, Dexter, and Bijou look for them. Bijou is afraid that Hamtaro has gone forever.
Hamtaro dreams that Bijou, Pashmina, Penelope, and Sandy are normal singers and dancers by day, but at night they are Girl Thieves.