During the rescue of three teens trapped on a reef, Mitch severely injures his spine after a huge wave forces him into a rock. His doctor reports that he may be a paraplegic for life. Mitch goes to a recovery hospital where he befriends Jason, a disabled 10-year-old boy soon revealed to be a murder witness in a relocation program. Hobie, Stephanie, and Sophie, his physical therapist, rally to repair his shattered life. Meanwhile, the hitman Riddick and a drug kingpin arrive in town to kill Jason before he can testify against the gangsters responsible for the murder he witnessed.

Matt enters a kickboxing tournament with Mitch as his coach, while Summer becomes interested in knowing more about Matt's competitor, Steve Thorn. But things take a turn when Michael Branson, an old rival of Mitch's during his days as a Navy SEAL, shows up. He plans a kickboxing showdown of his own between them since Branson still holds a personal grudge against Mitch for having him discharged from the service. Meanwhile, C.J. falls for a French photographer in town for a swimsuit photoshoot who inspires her to model for him.