When human remains are discovered in the belly of a shark, Brennan and Booth are brought in to identify the missing person. Meanwhile, both Brennan and Booth navigate their own relationship when a marine biologist shows interest in Booth.

A pair of bodies - one of a modern-day witch and one from the days of the Salem Witch Trials -  are found in a burned cabin in the woods. Hodgins' reckless driving gets him and Angela arrested and thrown in jail, where the two of them make a decision about their future together.