When her entrepreneur husband dies in an accident, Michelle Preston Richardson, 48, finds herself childless and directionless. She yearns for the simpler days of her youth, before she followed her high school sweetheart down a road that led to limitless riches but little fulfillment, and jumps at a chance to reconnect with her past at a class reunion.

Seattle, 1941. Grace Vandenberg, 21, is having a bad day. Minutes after Pearl Harbor is attacked, she learns that her boyfriend is a time traveler from 2000 who has abandoned her for a future he insists they cannot share. Determined to save their love, she follows him into the new century. But just when happiness is within her grasp, she accidentally enters a second time portal and exits in 1918. Distraught and heartbroken, Grace starts a new life in the age of Woodrow Wilson, silent movies, and the Spanish flu.

On September 11, 2020, Ginny and Katie Smith celebrate their 19th birthday at a country fair near Seattle. Ignoring the warnings of a fortune-teller, they enter a house of mirrors and exit in May 1964. Armed with the knowledge they need to return to their time, they try to make the most of what they believe will be a four-month vacation. But their 60s adventure becomes complicated when they meet a revered great-grandmother and fall in love with local boys.

When Kevin Johnson, 22, goes to Wallace, Idaho, days after his college graduation, he expects to find rest and relaxation as his family prepares his deceased grandfather's house for sale. Then he discovers a hidden diary and a time portal that can take him to 1910, the year of Halley's Comet and the largest wildfire in US history.

After struggling for years to have a child, Claire Rasmussen, 34, turns to adoption, only to find new obstacles on the path to motherhood. Then, she gets an unlikely phone call and soon learns that a distant uncle possesses the secrets of time travel. Within weeks, Claire, husband Ron, and brother David find themselves on a train to Tennessee and 1945, where adoptable infants are plentiful and red tape is short. For a time, they find what they seek. Then, a beautiful stranger enters their lives, the navy calls, and a simple, straightforward mission becomes a race for survival.

Weeks after his parents disappear on a hike, engineer Adam Carson, 27, searches for answers. Then he discovers a secret website and learns his mom and dad are time travelers stuck in the past. Armed with the information he needs to find them, Adam convinces his younger siblings to join him on a rescue mission to the 1880s.

Love, courage, and commitment take center stage as the Carsons, a family of time travelers, continue their saga in the great American West. For the Carson children, ages 19 to 29, an unplanned stop in 1962 is a chance to grow. Adam, Greg, and Natalie begin lives with new spouses in Boulder, Colorado, while twins Cody and Caitlin get their first taste of college. All plan to resume the search for their missing parents as soon as they can.

Rita Randall, a celebrated film noir actress in 1948, leaves LA after a fatal confrontation. Clint West is a best-selling author in 2019, struggling to move on after the death of his wife. Rita and Clint travel to Long Island, New York and occupy the same beach house - 71 years apart. When Rita appears in the background of Clint’s recent cell phone photos, he’s mystified. When Clint appears in Rita’s photos, she’s troubled and confused.  Clint investigates and learns about secret time travel experiments that were conducted in the area during the 1940s.

Weeks after her husband dies in the midst of an affair in 2016, Chicago writer Susan Peterson, 48, seeks solace on a California vacation with her mother Elizabeth and daughter Amanda. The novelist, however, finds more than she bargained for when she meets a professor who possesses the secret of time travel. Within days, the women travel to 1938 and Princeton, New Jersey.

Arizona, December 1943. After surviving perilous six-month journeys to 1889 and 1918, the Carsons, five siblings from the present day, seek a respite in their home state. While Adam and Greg settle down with their Progressive Era brides, Natalie and Caitlin start romances with wartime aviators, and Cody befriends a Japanese family in an internment camp.

Providence, Rhode Island, 2017. When doctoral student Cameron Coelho, 28, opens a package from Indiana, he finds more than private papers that will help him with his dissertation. He finds a photograph of a beautiful society editor murdered in 1925 and clues to a century-old mystery. Within days, he meets Geoffrey Bell, the "time-travel professor", and begins an unlikely journey through the Roaring Twenties.

Olivia Blake loves her job. Restoring art and discovering the history behind it is a regular part of her simple life. So, when her boss presents her with a damaged portrait of a British soldier from the American Revolution, she jumps at the chance to work on it. When her journey to discover who the man was is cut short by a bad car accident, Olivia surfaces in the icy waters of the Delaware River, staring at George Washington as he crosses with his army. Panicked, she flees into the woods and right into the arms of a very surprised British soldier - the man from the painting. 

Life is good for Katie Coyle. She's delighted with her new position as a professor of Irish literature and history and enchanted by the old cottage on the cliff overlooking a beach that she now calls home. But she can't shake the feeling that something - or someone - else calls the cottage home and that in the night, echoes of an anguished voice calling for help haunt the beach below. 

When husband and wife Eve and Patrick Gantly discover a shocking secret from Patrick's past, they make the difficult decision to use the old lantern once again to return to 1885. They hope to save his child from a tragic future. Although they try to plan for every possible contingency, something goes wrong. They lose each other and end up in a different time! Nothing goes as planned. They struggle to save Patrick's daughter from certain death, even as they search for the lost lantern that will return them to their own time.

Scott McKenzie's father killed his mother and himself. Scott vowed to do anything in his power to stop similar murders. He longed to be a police officer, but a tour in Vietnam in 1970 derailed that career. Two years later, wounded in body and soul, Scott died. He didn't go on to what was next, though. Instead, he woke up with a chance to live his life over and over until he got it right. Murderers will never see him coming. But, by using violence to save others, is he losing his own soul?