Second season of Blood Blockade Battlefront.
Femt releases demonbeasts upon the city. The US presidential envoy to Hellsalem's Lot goes missing, and it's up to Leo and the other members of Libra to get him to his function at Federal Hall in time.
When Zapp is critically injured, he is taken to a hospital that Klaus and Steven have been searching for since the Great Collapse three years previous. Klaus and Steven recount the events of the Great Collapse.
Steven throws a party for his friends outside of work. Leo has his wallet, including his allowance to Michella, stolen by some out-of-towners. Zapp must help track down a pet cat. Chain gets into a drinking contest.
The general of a hostile foreign power is visited in the middle of the night by a team of invisible werewolves, including Chain. When his aggression continues, it's up to the werewolves again to put a stop to his actions.
After Gilbert is injured, Philip, a substitute butler, is sent from the Reinherz estate to cover for him. As Philip tries to settle into the city, he has difficulty adjusting to the necessities of the Libra workplace.
Leo receives some disheartening news about the chances of reversing Michella's condition. An unexpected intruder takes control of Libra's offices, activating the security measures and barring anyone from getting in.
After Zapp complains about subsidizing the cost of Zed's special needs, Zed goes job hunting, and ends up having his breathing apparatus stolen from him, leaving it to Leo and the others to track it down and retrieve it.
Leo and his friend, Riel, are mugged, following which Leo is hit on the head by a spherical vehicle piloted by a microscopic doctor. Meanwhile, a microscopic scientists offers Riel the chance to become something more.
Now that Riel has grown to a colossal size, Gemnemo tries to get inside his head. When Chain is unavailable, it falls to Leo, Li Gado, and Sonic to find Gemnemo and put a stop to his plans before the city is destroyed.
K.K. refuses to let an important mission stand between her and parents' day at her son's school. But can she find a way to balance her job and being a mother without violating the fragile trust her son places in her?
When Leo calls Michella, she delivers a bombshell, informing him that she is on her way into the city. Klaus decides that they should be given protection during their reunion, where an even bigger surprise awaits.
With his sister being held hostage, and no backup from Libra, Leo has no choice but to follow Dr. Gamimozu's orders. Will he allow himself to be operated on and take Toby's place in order to rescue Michella?