Each episode features two pairs of humans, each grouped by a shared profession (nurses, firefighters, flight attendants) or hobby (pub trivia competitors, beauty pageant entrants, magicians). The human pairs compete in a series of challenges — some against one another, but most against one of the "Hamstars", a group of 10
hamsters with
American Gladiator-style identities. The physical challenges are timed and scaled to both human and hamster sizes. The Hamstars are named Ham, Warrior, the Professor, Shadow, Gnasher, Romeo, Lightning, Kevin, Diamond, and Astro. Human teams receive $1,000 for winning a challenge, and the team that wins the most money advances to the
Habitrail-inspired finale, Escape the Cage, which pits a team member against a hamster in a multistage obstacle course. ==Production==