Walt and Jesse attempt to tie up loose ends. The desperate situation gets more complicated with the flip of a coin. Walt's wife, Skyler, becomes suspicious of Walt's strange behavior.

Walter fights with Jesse over his drug use, causing him to leave Walter alone with their captive, Krazy-8. Meanwhile, Hank has a scared straight moment with Walter Jr. after his aunt discovers he has been smoking pot. Also, Skylar is upset when Walter stays away from home.

As the end of her pregnancy finds Skyler conflicted about her feelings, a dealer's death forces Walt to look for somewhere to unload a load of meth.

Skyler confronts Walt about his secrecy; Jesse falls apart; and Jane's grief-stricken father takes action that results in further tragedy.

Despite ever-increasing tension between Walt and Skyler, he pulls out all the stops in an effort to reconcile with the family. Elsewhere, Saul is instrumental in getting Jesse involved in a most-unusual investment opportunity.

Against Walt's advice, Jesse lashes out. Fearing for Jesse's safety, Walt takes drastic action to intervene and tragic event leads to a shocking confrontation.

Walt and Jesse face the deadly consequences of their actions. Skyler deals with a puzzling disappearance, as Marie struggles to help Hank with his recovery.

Walt and Jesse formulate a new business plan. Walt shares a secret with Marie.