Tennis player turned coach Tashi has taken her husband, Art, and transformed him into a world-famous Major champion. To jolt him out of his recent losing streak, she signs him up for a "Challenger" event — close to the lowest level of pro tournament — where he finds himself standing across the net from his former best friend and Tashi's former boyfriend.

Five young mutants, just discovering their abilities while held in a secret facility against their will, fight to escape their past sins and save themselves.