Ep 6. To Catch a Fed

An FBI agent strong-arms William into searching for her former partner, who developed a drug addiction while deep undercover on a case. William and crew infiltrate a "tent city" of meth manufacturers to find the man, who is delusional and dangerous. Only then does William realize that the FBI agent lied to him: the man is not only her ex-partner, but the father of her unborn child--and a pawn in a larger power struggle within the FBI.