A reeling Marcus and Paul join forces with Mother to disarm the newly weaponized serpent before it wreaks unimaginable havoc.

Grandmother reveals her own agenda, Marcus seeks revenge, and Mother sets out to neutralize the serpent – but is leveled by the fallout.

New Helios employees arrive on Mars as NASA undergoes major changes.

Eight years later, a new mission begins: Capture an asteroid. Aleida and Danielle are still haunted by events from the past.

Complications arise in Jack’s plan to extract Chao and his family from the compound in Myanmar. Back in D.C., Greer comes to a shocking conclusion.

If Wright wants to get Jack out alive, compromises must be made. Groundbreaking intel gives the CIA a chance to prevent a domestic terrorist act.

Jack, given the task of cleaning up the CIA, makes difficult decisions that have immediate consequences. A cartel operator moves in the shadows to organize an important meeting.

Seg must decide if he can make the ultimate sacrifice in service of the greater good of Kandor.

A laid-off worker kidnaps a high-powered accountant in revenge for his lost pension, and the team gets swept up in a case of class warfare when Bryan decides to help…

The crew of Nathan James faces a threat that will test the limits of their Naval tactics and strategies.