Season 4
While the world recovers from the global catastrophe of last season, a changed Mark struggles with guilt as he fights to protect his home and the people he loves, setting him on a collision course with a powerful new threat that could alter the fate of humanity forever.
Episodes
1. MAKING THE WORLD A BETTER PLACE
Mark battles enemies new and old in his fight to keep Earth safe.
2. I'LL GIVE YOU THE GRAND TOUR
Loyalties are challenged when an old enemy is revealed.
3. I GOTTA GET SOME AIR
Consequences weigh on Mark. Oliver takes on a new job.
4. HURM
Hurm.
5. GIVE US A MOMENT
Mark embarks on a new and dangerous mission, throwing Debbie into a tailspin and plunging Eve into uncertainty.
6. YOU LOOK HORRIBLE
Family bonds are put to the test. Under pressure, Allen makes a new friend.
7. DON'T DO ANYTHING RASH
Nothing goes according to plan during a massive confrontation.
8. DON'T LEAVE ME HANGING HERE
Mark confronts his darkest fears as his life changes forever.