Marcus brings the members of the Colorado and the islanders all together to celebrate their two cultures -- a feast in the spirit of Thanksgiving. But the good times turn bad the next morning when an essential crew member is accused of a serious crime. Grace handles the man's defense and is tasked with finding out the truth.

Sam and James depart the island in a daring rescue attempt. Back on the island of Sainte Marina, a Chinese diplomat arrives to make a deal with Marcus. With scarcity and a prison problem plaguing him, Marcus finds himself treading down a more treacherous path than he could have imagined.