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Season 4
Mark battles enemies new and old in his fight to keep Earth safe.
Mark battles enemies new and old in his fight to keep Earth safe.
Loyalties are challenged when an old enemy is revealed.
Loyalties are challenged when an old enemy is revealed.
Consequences weigh on Mark. Oliver takes on a new job.
Consequences weigh on Mark. Oliver takes on a new job.
Mark embarks on a new and dangerous mission, throwing Debbie into a tailspin and plunging Eve into uncertainty.
Mark embarks on a new and dangerous mission, throwing Debbie into a tailspin and plunging Eve into uncertainty.
Family bonds are put to the test. Under pressure, Allen makes a new friend.
Family bonds are put to the test. Under pressure, Allen makes a new friend.
Nothing goes according to plan during a massive confrontation.
Nothing goes according to plan during a massive confrontation.
Mark confronts his darkest fears as his life changes forever.
Mark confronts his darkest fears as his life changes forever.
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