Dan reunites with a past fiancee, complicating his present life with his wife, Katie.
Dan wonders if he imagined his time-traveling journeys and decides to get an MRI; he disappears during a flight to a romantic weekend getaway; he must help deliver a baby.
As things start to heat up between Dan and Katie, he travels 18 years into the past to warn people in San Francisco about an imminent disaster; Katie discovers that Dan has been in touch with a past love.
As Katie prepares for her charity gala, Dan heads back to 1995 to help a young woman on a blind date; Katie decides to invite Jack to be her date for the gala.
Dan travels back in time to follow a former Army ranger who hijacked a huge amount of money for a good cause; Katie answers police questions when a robbery occurs on the night of her gala.
Dan's latest journey sends him to help brothers scarred by their father's abuse; Jack suspects that Dan has fallen back into his old gambling habits; Dan learns a lesson about brotherly love.
Katie considers returning to work as a TV journalist; Dan travels back in time to protect a witness from certain death; Jack continues to investigate his brother's mysterious behavior.
Dan journeys back to a "key party," where he meets a young hippie involved in a deadly crime; Katie makes an interesting discovery about Livia's past; Dan and Jack get into a fight over an investigation.
Dan travels to the early 1990s, where he appears to be tracking a serial kidnapper (Raphael Sbarge); Katie wonders about the effect of Dan's disappearances on Zack when she is called to the school.
Dan learns a hard lesson about what happens when he goes off-mission on a trip back to 1983, when he discovers a young criminal in the making; Livia continues to uncover secrets about her purpose in life.
When layoffs hit Dan's office on Christmas Eve, he must travel back in time to the newspaper's holiday party; Katie tries to enjoy the holidays but struggles to get her traumatic experience out of her head; Dan discovers a new secret about Livia.
Dan's travels take him to an RV, with a woman and her son inside, hanging off a cliff; Katie's sister (Melinda McGraw) visits and suspects that Dan needs help; Dan realizes the consequences of leaving things in the past.
Dan travels a few months into the past and meets Evan, who says he is also a time traveler and wants Dan to help him reunite with a past love; Katie panics when she returns and sees blood on the floor; Jack tries to question Elliot Langley.