Philip is ordered by the Director to attend an "update" with various other Historians, which is where the altered timeline's history is imprinted onto their minds, but it comes with physical and emotional consequences. Trevor tries to help a former football teammate with past trauma. Hall returns from prison and has a new mission assigned to him from the Director. Kat has complications with the pregnancy.
After asking Marcy to move out, David admits he cannot bear to be without her. She tells him she is dying, and they kiss. Trevor tries to connect with his father. Jeff files assault charges, preventing Carly from finding a job. She asks him to take the baby for an afternoon, unaware he has tipped Kat off to Carly's relationship with MacLaren. Under orders, a traveler murders her host's Cabinet-member husband, and instructs MacLaren to board a flight as Congressman Bishop's seatmate. In flight, MacLaren learns he is to activate a stasis field to save himself and Bishop, while all others aboard will die in a crash. MacLaren discovers Kat followed him on board, believing she would witness his infidelity. He instructs Kat and Bishop to use the stasis device, and attempts to survive impact unaided, using only Philip's knowledge of the crash. At the crash site, the team resuscitate Kat and Bishop, and Bishop is overwritten. To Carly's dismay, MacLaren is taken away by traveler paramedics before the team can reach him.
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