The Bones on a Blue Line follows the case of a subway train which was thrown off tracks when 60,000 gallons of water struck it. From the overflow, a skeleton emerges. Meanwhile, Dr. Sweets was a passenger on the train and suffers from post-traumatic-stress-disorder, then must make a drastic decision.

With the help of intern Daisy Wick, the team identifies the body as Martin Aragon, a ghost writer who was stuck in a deadly love triangle.

Back on Brennan, she releases her second book. She ends up getting harassed by a nosy reporter.

Make sure to bookmark this page and return once Bones, S5, E15, The Bones on a Blue Line, airs in order to watch it here for free! Also, have you already seen Bones, Season 5, Episode 14, The Devil in the Details?

Here is the trailer for Bones, S5E15, The Bones on a Blue Line, followed by a preview of the 100th episode: