Stephen “Stack” Jackson and fiancé Tammy attempt to dunk on their competition – high school sweethearts Adam and Daniella Pally and actors Malin Åkerman and Jack Donnelly – until a surprise dance challenge proves a real buzzer-beater.

Hoping for another fairytale ending, Ginnifer Goodwin and Josh Dallas lay their partner knowledge on the line against fellow actors Mark Duplass and Katie Aselton, multi-hyphenate TV star Terry Crews, and his wife Rebecca.

Celebrity couples Evan and Ashlee Simpson-Ross, Sam Jay and Yanise Monét, and Curtis Stone and Lindsay Price dance for their lives in hopes of landing a perfect score – and bringing home money for their charity of choice.

Anna Camp and musician boyfriend Michael Johnson try not to lose focus as comedians Loni Love and Bobby Lee bring the house – and competition – down with uproarious facts about their partners, James and Khalyla.

Stephen braces himself – and covers his ears – as his sister Sydel and brother-in-law/Golden State teammate Damion Lee reveal surprising truths about one another to defeat opponents Casey Wilson, David Caspe, Niecy Nash, and Jessica Betts.