"Trilobite scores a viral video hit when he stages a comedy opera prank. Amber gets pulled into the wild world of walrus fighting, and Tiffany's past as a competitive video game player comes back to haunt her. Opabinia and company are also back to cause trouble at every step. The gang will cause mayhem on a hospital ship and a giant floating mall shaped like a ball before they find out that fame always comes at a price"--Provided by publisher.