Crashing meteor wipes out all technology and wreaks havoc on the colony. Meanwhile, Maddy and Reynolds are stuck out in the wilderness, Elisabeth and Skye work together to save a life and Taylor tries to prevent Mira and the "Sixers" from invading Terra Nova. Also, a mystery man makes his presence known.

As Taylor searches for the "Sixer" mole within Terra Nova, Jim stumbles onto an old murder, for which Taylor is the prime suspect.