With dinosaur influenza raging through Alpha Gang’s ranks, Dr. Z uses their teleportation device to beam in a top-notch dinosaur veterinarian.  An unfortunate misreading of the yellow pages, however, leads Ursula to mistake Zoe's father for a preeminent reptilian vet. Unable to get a call through to Zoe, Max and Rex stop by her home, only to find the entire house along with its residents gone. When their Dino holders detect Paris on Alpha's hidden island, they teleport in to rescue their friend. Zoe's father, however, an accomplished doctor, refuses to leave the island before treating his dinosaur patients. As he gives chase to an ailing Tyrannosaurus, Max and Rex work to lower the force field trapping them on the island.