The Currency of Doubt - S2.E1

Tina and Toby are the stars of the school at both dancing and smoit-collecting. Smoits are tokens found on dairy bars and packets of chips used to buy basically anything a kid could want once enough of them are saved up. The smoit stash goes missing, and Fillmore and Ingrid go undercover in X's steamy underground casino scene. They discover Toby's gambling debts, and he becomes the prime suspect, which destroys his dance partnership with Tina.