While scouting for supplies, Tom, Hal and their squad encounter a gang of marauders determined to get their hands on the 2nd Massachusetts’ weapons. Leading the gang is an ex-con named John Pope, who decides to use his hostages as bargaining material.

The episode was rated 7.56 from 949 votes.

The 2nd Mass arrives at a safe haven. As the two groups make plans for the final assault on the Espheni, the 2nd Mass begins to realize that things aren't exactly as they seem.

The episode was rated 7.56 from 1817 votes.

On the outskirts of Charleston, just steps away from perceived safety, The Mason Clan and the remaining 2nd Mass suddenly find themselves under brutal attack by a new Espheni war machine – and a new, deadly creation unlike anything previously encountered. Divided like cattle and spread to the winds, The Masons must each forge new relationships and abilities to survive.

The episode was rated 7.55 from 1853 votes.

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.

The episode was rated 7.50 from 1760 votes.

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 hostage. Meanwhile, Tom sets off to rescue Hal from Pope and his dangerous group of survivors.

The episode was rated 7.50 from 1754 votes.

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 around the world. Hal disobeys his father to help Maggie on a personal mission. Meanwhile, Tom has to make an agonizing choice that ultimately risks one of their own, leaving lasting repercussions for them all.

The episode was rated 7.49 from 1776 votes.

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 they search for a missing Tom. Meanwhile, The 2nd Mass locates an Espheni device that could be a linchpin to winning the war... if they can figure out how to use it. And Maggie makes a decision that has consequences for her and the entire 2nd Mass.

The episode was rated 7.48 from 1765 votes.

The final standoff brings the Masons, the 2nd Mass and their new allies into the bowels of an iconic American location, wrought with new and unpredictable obstacles. Despite great loss along the way, they must persevere with hopes of once and for all reclaiming Earth and humanity.

The episode was rated 7.47 from 1949 votes.

On the heels of Tom and Lexi's successful albeit tragic mission to destroy the Espheni power core on the moon, we pick up with Tom's life hanging in the balance as his Beamer drifts into space. While onboard the beamer, Tom encounters a surprising guest who urges him to find his inner warrior. Meanwhile, back on earth, Anne reluctantly steps into Tom's shoes to help lead the 2nd Mass in his absence. Against all odds, Tom makes a miraculous, yet mysterious return to earth. Once reunited with the 2nd Mass, Tom shares a new plan for winning the war. The Espheni, for the first time, are on their heels, and the 2nd Mass will not rest until they are gone from this planet for good.

The episode was rated 7.46 from 1847 votes.

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 stability and his loyalties are brought into question. Meanwhile, a desperate Pope takes things into his own hands.

The episode was rated 7.38 from 1786 votes.