Zabu joined with other animal sidekicks to form the Pet Avengers. Mentally linked to each other by one of the Infinity Gems, they joined to fight Thanos. The gems were noted for increasing the intelligence of the animals. The mental link also includes President Obama's dog, Bo, an honorary member of the team. During the series, Zabu survives a confrontation with Devil Dinosaur and being swallowed by the monster Giganto. In another incident, Zabu and his fellow Pet Avengers travel to China to confront a small group of ancient dragons. This incident leads to them fighting the human Avengers. The confrontation ends well, earning Zabu and the others their own personal home-away-from-home on the grounds of the Avengers Mansion.