Christmas arrives in the Bunker, and the Time Team is inspired by a visit from their future selves to find a way to try to save Rufus. But when the Mothership jumps to 1848 California, they’re forced to put those plans on hold and chase Rittenhouse back to the Gold Rush, where they encounter one of the era’s most dangerous villains. Then chasing the Mothership to Korea in the winter of 1950, the team helps a stranded, pregnant refugee attempt to escape a tragic fate.

With one of our heroes' lives on the line, the team chases Flynn to 1954 through the paranoid corridors of Joe McCarthy's Washington D.C., en route to a secret, once-a-generation meeting of Rittenhouse leaders. While there, Lucy must wager the ultimate sacrifice to save history as we know it.

A stunning turn during the American Revolution prompts Lucy, Wyatt, and Rufus to question whether they've been fighting on the wrong side this whole time. While Agent Christopher prepares for the worst back in present day, the team encounters the Father of the Country, makes a dubious pact, and confronts the possibility they may not be a trio for long.

Lucy's situation grows desperate after she's taken captive by Flynn and brought to the 1893 Chicago World's Fair. In their dogged pursuit of Lucy, Wyatt and Rufus fall into a sinister trap.

When a Rittenhouse sleeper agent in 1941 Hollywood steals the only copy of Citizen Kane, Lucy, Wyatt and Rufus team up with Hedy Lamarr to get it back. Hedy Lamarr turns out to be not only a glamorous movie star but also a scientific wizard whose discoveries led to the invention of Wi-Fi.

When a mission goes awry, Wyatt and Rufus are forced to bring a 17-year-old John F. Kennedy with them to the present. Anxious to return the future president to history, the team must find a way to work together to rescue JFK and return him to the past before Rittenhouse assassinates him in 2018.

The Time Team travels back to 1981 Washington D.C. on the day President Reagan was shot, only to discover that the Sleeper’s target isn’t the President – but a young rookie police officer – none other than Agent Christopher, who brought the time team together and kept the Lifeboat from getting into Rittenhouse’s hands. The Time Team must save Agent Christopher’s life and prevent her from making a mistake that set her on a different path that would forever change her own future, the future of the team -- and the future of the world.

When the Mothership jumps to South Carolina in 1863, the Time Team partners up with a courageous Union spy and military leader, Harriet Tubman - AKA "The General" - to thwart Rittenhouse's plan to alter the outcome of the Civil War. Back in the present, Rittenhouse hits the team where it hurts the most. Then, Jiya makes a daring escape from Rittenhouse that strands her in San Francisco's Chinatown in 1888 with no way home.

After barely escaping an explosion at Mason Industries, Wyatt and Rufus chase the Mothership back to a French battlefront during World War 1 to rescue Lucy from Rittenhouse. There, they discover that Lucy has recruited Marie Curie, the famous French scientist and the only person ever to win two Nobel Prizes, to help save the life of a wounded American soldier, only to learn that the soldier is Lucy’s own great-grandfather who Rittenhouse is bringing to the present to be their leader.

In the bustle of 1919 New York City, suffragette Alice Paul is framed for murder and the Time Team partners up with legendary female crime solver Grace Humiston – AKA “Mrs. Sherlock Holmes.” Together they attempt to prove Alice’s innocence in time for her to give a powerful speech that turns the tide in the passage of the 19th Amendment giving women the right to vote. Back in the present, Connor Mason salvages key intel from the Rittenhouse raid.

Back in 1969, the team goes undercover at NASA to stop Flynn from sabotaging the moon landing and killing the crew of Apollo 11.

On the run with the bank-robbing Barrow gang, the team needs to gain the trust of ill-fated lovers Bonnie and Clyde in order to find out Flynn's target in the Depression-era South. While Agent Christopher tracks down a lead in present day, Lucy, Rufus, and Wyatt risk getting caught in the crossfire, suspecting that whatever Flynn's after may be a key piece of the whole puzzle.

Wyatt convinces Rufus to steal the Lifeboat for an unauthorized mission to prevent Wyatt's wife's killer from ever being born. Lucy must cover for them in the present, as Agent Christopher discovers the ship is missing and Anthony Bruhl makes an alarming confession.

Flynn travels to 1931 Chicago to partner with gangster Al Capone. Lucy, Wyatt and Rufus, meanwhile, team up with the only man who can bring Capone down: federal law-enforcement agent Eliot Ness.

The team travels back to the assassination of Lincoln to stop Flynn from making that night an even bigger tragedy.

The team races to stop Flynn before the bloody Battle of the Alamo ensues, but will it be victory or death for our time-traveling trio?

While Wyatt sneaks away from the bunker to face an unbelievable truth, Lucy, Rufus and their former enemy-turned- teammate, Garcia Flynn, chase the Mothership to the Salem Witch Trials. There they must prevent the execution of a headstrong young woman who, it turns out, is mother to one of the most consequential Americans of all time – the yet to be born Benjamin Franklin. When Lucy is accused of being a witch, the team rallies together not only to save Abiah and Lucy, but all the accused women.

When Rufus and Jiya add a fourth seat to the Lifeboat, for the first time ever, Connor Mason joins the team as they travel back to the dusty backroads and smoky juke joints of the Depression-era South to rescue the life and legacy of Robert Johnson – King of the Delta Blues, Godfather of Rock n’ Roll and a man who, legend has it, bought his musical genius from the Devil for the price of his soul. Meanwhile, Agent Christopher keeps Wyatt in the present to execute a dangerous raid on Rittenhouse headquarters.

The trio teams up with one of literature's most popular figures, James Bond creator Ian Fleming, to defeat Flynn's sinister plot in Nazi Germany.

The trio races to catch Flynn in 1972 before he can steal the mysterious missing minutes of the Watergate tape, but personal secrets threaten to tear the team apart.

Flynn teams up with legendary outlaw, Jesse James. Together they cut a bloody swath across the American frontier. Hot on Flynn's trail, Lucy, Wyatt, and Rufus enlist the help of an iconic Marshal to help bring the fugitives to justice.

The Time Team chases Rittenhouse to a stock car race in the 1950s where Wyatt learns that his favorite race car driver is actually a Rittenhouse sleeper agent on a mission to destroy the American car industry. To stop the Rittenhouse plan, Wyatt, Lucy and Rufus team up with Wendell Scott, the first African-American NASCAR driver.

The team must battle the French, Indians and Mother Nature after Flynn sabotages the Lifeboat and traps them back in Western Pennsylvania circa 1754.

As Lucy grapples with her newfound identity, Flynn disappears to 1927 France on the day that Charles Lindbergh completes his transatlantic flight. Now, Rufus, Lucy and their new soldier scramble through the City of Lights and team with young reporter, Ernest Hemingway, to keep history intact.

A history professor's life is turned upside down when she's tapped to join an unlikely team tasked with stopping a man bent on changing the past - and possibly destroying the future.