Dan meets another time traveler, whom he agrees to help reunite with a past love; Livia lands in the present just as her wedding in the past is about to happen; Jack seeks answers from Elliot; and Katie panics when she finds blood at home, but no Dan.

Dan is sent to rescue a mother and son in an RV hanging from a cliff. Upon his return to the present, he realizes there are dire consequences to leaving things behind in the past when Zack goes missing. Meanwhile, Katie's sister visits and believes Dan needs help.

Dan travels back to the newspaper's holiday party after Christmas Eve layoffs hit his office. He also runs into his father in the past and asks him to spend more time with the family. Elsewhere, Katie tries to put her traumatizing experience behind her, and Jack and Theresa receive some surprising news.

The kidnapper returns seeking revenge and targets Katie. Meanwhile, Dan travels to 1983, where he finds the origins of a criminal; and Livia learns more about her life's purpose.

Dan travels to the early '90s on the trail of a serial kidnapper; Katie is called to Zack's school; and Jack begins to see signs that his brother is telling the truth about his time trips.

Dan attends a party in the past, where he meets a young hippie woman with ties to a murder. Elsewhere, Katie stumbles upon something interesting about Livia's past, and Dan and Jack quarrel over a probe involving Dan.

Katie contemplates returning to work as a television journalist, much to Dan's chagrin. In the past, Dan must save a witness's life. Meanwhile, Jack continues probing his brother's odd behavior.

Dan comes to the aid of two brothers traumatized by their father's abuse. Elsewhere, Dan and Livia eavesdrop on an intimate chat between Jack and Katie; and Jack suspects Dan has started gambling again.

Dan tracks a former soldier accused of stealing a large amount of money. Meanwhile, Katie deals with the police after a robbery takes place the night of her gala.

Dan finds himself in 1998 following a woman who co-founded a software company, and discovers her fiancé was cooking the books. Meanwhile, Dan's trips disrupt Katie's fund-raiser gala, and the tension only escalates when he admits he sees Livia regularly in the past.

Dan is transported back 18 years to warn San Francisco of a looming disaster and prevent a man from entering a life of addiction. In the present, Katie learns Dan has been in contact with Livia, despite his claims to the contrary.

Dan gets an MRI after doubting his time trips, but then he vanishes from a flight with Katie and finds himself in charge of delivering a baby.

San Francisco journalist Dan Vasser is inexplicably transported to the 1980s, where he meets up with his ex-fiancée. He must figure out why he is there and how to explain his odd disappearances to his wife and boss.