Review | The Amazing Race: Unfinished Business

Credit: Monty Brinton/CBS

Airs Sunday 2/20

Us Rating: ***1/2

The series' most memorable also-rans -- including the Harlem Globetrotters and goths -- return for a second shot at glory. They're going to have to earn it, as the 14 pairs face extra-tough obstacles (and one medical emergency!). At the first road block in Sydney, for example, players must find a compass in a shark-filled tank, then solve a ridiculously tricky puzzle. Alliances form, enemies seethe, tempers flare. Love it. (CBS, 9 P.M.)