When a newspaper article reveals that a high ranking KGB man worked for the U.S. during the cold war. The man fearing what will happen if he's exposed alerts the C.I.A. P ...

When a newspaper article reveals that a high ranking KGB man worked for the U.S. during the cold war. The man fearing what will happen if he's exposed alerts the C.I.A. P ...

The Agency has the terrorists suspected of plotting to assassinate the king of Saudi Arabia arrested, only to learn a surprising fact about them. ...

Haisley is suspected of being a mole by a counterintelligence agent when the foreign national she's dating lies about knowing her on a polygraph test. ...

Matt discovers the truth about the death of his brother Eric in 1999 while on assignment in Kosovo. In the meantime, Haisley heads to India to work with a double agent wh ...

When the Agency learns that someone has in their possession anthrax, they try to find out who and how they plan to use it. They think they found the man, a man named Zimm ...

Callan attempts to recruit a Middle Eastern diplomat to help stop terrorists from setting off a bomb in three days, but the diplomat is reluctant to get involved out of f ...

A New Jersey couple is shot in their backyard, where investigators find a fallout shelter with items that lead the Agency to suspect that the husband was a Russian spy wi ...

American miners are taken hostage in Indonesia, so the Agency sends an inside operative who may be a little too headstrong. ...

The Agency is investigated for its involvement in the downing of a small plane over Columbia carrying two members of a missionary family who mistaken for drug dealers. ...

The Agency receives word that Fidel Castro will be assassinated when he visits the United States and the CIA has 48 hours to stop the assassination. ...

Tom gains a powerful new weapon against the Espheni. Ben puts his life on the line to extract enemy plans. Pope discovers that Tom is alive, and launches a final attack. ...

Weaver discovers a shocking truth about an old friend and must decide how to best protect the 2nd Mass. Maggie and Isabella are forced to work together, while the remaind ...

The 2nd Mass arrives at a safe haven - a functional military base run by Weaver's old colleague and flame, Captain Katie Marshall. As the two groups make plans for the fi ...

Injured, Tom takes refuge with a unique family who has distanced themselves from the fight, giving him a glimpse of life without war. Hal and Isabella's romance grows as ...

The 2nd Mass leaves Chinatown en route to what they hope will be the final Espheni battle. Along the way, they encounter a deranged and desperate gunman who takes Weaver ...

A mission to procure vehicles and fuel goes awry. Cochise shares troubling news with Anne that will test both her medical and leadership skills. Anthony's mental stabilit ...

The 2nd Mass discovers the source for the seemingly endless supply of enemy forces. With the Volm's help, Tom's leadership begins to spread to remaining human militias ar ...

A surprise skitter attack leaves the 2nd Mass without food. In desperation, Maggie, Ben, Pope, and Sara go on a dangerous mission hoping to find supplies. Along the way, ...

Tom's life hangs in the balance as his beamer drifts into space during which he encounters a surprising guest. Meanwhile, the 2nd Massachusetts go on the offensive agains ...

With the weight of humanity's survival on Tom and Lexi's shoulders, they must defeat Tom's mortal enemy and find a way to destroy the omnipotent Espheni Power Core. Meanw ...

Tom and the remnants of the 2nd Mass learn to pilot a Beamer as part of their plan to destroy the Espheni Power Core, and the group draws straws to see who will embark on ...

While members of the 2nd Mass attempt to dig out a shot-down Beamer, Tom and a small team follow the Volm to a supply cache in search of equipment to expedite the process ...

The 2nd Mass picks up the pieces after a devastating alien attack leaves Maggie fighting for her life... and Hal fighting for Maggie. Meanwhile, Tom and Dingaan are cut o ...

After months apart, Tom finally reunites with his family and the 2nd Mass. But the joyous reunion is cut short as Lexi undergoes a health crisis tied to her hybrid DNA. T ...

When the 2nd mass destroys a crucial Espheni base, a relentless enemy is taken down and the Mason family is reunited with those who had been lost. ...

Tom uncovers confidential intelligence about the heart of the alien operation. Meanwhile, Charleston prepares to mount an offensive against the Espheni, but a massive exp ...

Things seem much too calm for Tom, making him suspicious of his surroundings. ...

The Masons run into trouble on the road when a family of outlaws intercepts their search-and-rescue mission. ...

Hal finally reveals his internal struggle to everyone, and it doesn't bode well for the Masons. ...

When a mission goes terribly awry, Tom and Pope must rely on each other to survive. Meanwhile, Weaver and company search desperately for two members of the 2nd Mass who h ...

After the people of Charleston defeat another alien attack with the help of new advanced weaponry, and Tom is invited to meet with a powerful leader (guest star Stephen C ...