Floyd takes action and Charlie tries to prove himself. Peggy and Ed disagree about what to do next and Lou is sidelined during Ronald Reagan's campaign tour.
Dr. Alan Farragut and his team of CDC scientists are called to a remote Arctic Research Base where his brother got infected with a deadly and unknown virus. Soon Alan and his team have to realize that there are secrets being kept.moreless
In one reality, Michael sits in a holding cell hoping that Bird can clear his name, while in the other the police force hunts the wounded detective down. But in the final confrontation, Michael may face his greatest enemy: reality.moreless
Michael learns of the conspiracy behind the accident that killed his family and goes after Detective Hawkins in both realities. The Birds in both reality have to choose who to believe as well, and one of them will pay the price.moreless
Harper becomes concerned about Michael's behavior after he has a disturbing dream that prevents him from switching realities.
In one reality, Michael investigates a gang-related shooting but indicators in the other reality suggest everything isn't what it seems. In the other reality, Hannah helps Emma, Vega plans Michael's going-away party to Oregon, and Captain Harper realizes that the situation with Michael isn't going away as neatly as she hoped.moreless
Michael experiences two different versions of the same football game and deals with murders that resulted from the altered outcomes. Meanwhile, Vega plans a going-away party for Michael, and in the other reality Rex has his heart broken.moreless
In one reality, Michael and Bird coordinate the entry of a couple into the Witness Relocation Program, while in the other Vega meets his partner's longtime informant.
Michael returns to a case that he was working on prior to the accident, giving Captain Harper cause for concern. Meanwhile, Michael and Vega work an old homicide case and Dr. Lee provides an assist while Hannah prepares for the move to Oregon. And in the other reality, Michael and Bird investigate a suicide and Evans gives Michael some advice about whether he should go with Hannah.moreless
In one reality, Michael finds himself collaborating with Dr. Lee to help a man with schizophrenia who has taken a hospital hostage. The key to helping him is a ring in the other reality that disappears. Meanwhile, Michael starts hallucinating and sees a penguin everywhere, while Rex tells his father about his new girlfriend Emma.moreless
A FBI agent questions Michael's new method of solving cases via "hunches" when the detective tracks down a serial killer long believed to be dead, based on what he sees in the other reality. Meanwhile, Hannah wants to move back to Oregon and both of Michael's psychiatrists warn that if he leaves Los Angeles, his dreams could disappear.moreless
Detective Michael Britten encounters his son's former babysitter while investigating an apparent suicide at an exclusive party on a yacht. He then meets the babysitter again in his other reality, but this time she's a suspect in a case.moreless
Rex is kidnapped by an escaped convict Michael arrested 10 years ago and the investigation gets gets in the way of an event honoring his deceased son in the other reality; clues from both realities lead to Michael's sanity being questioned.moreless
While trying to cope with the grief of his son and wife in the two alternate realities, Michael gets a clue to the murder of a homeless man in one reality and tries to use it to find the suspect in the other reality. Meanwhile, Michael's captain begins to question his sanity as the events of the car accident come into question.moreless