All hope seems lost when the crew learns an asteroid is hours away from impact.

The crew discover they're not alone in space and learn more about where they came from.

After an unpopular decision, discord gives way to deadly mutiny in which loyalties are tested.

Ark One tries to broker peace with its adversary but doesn't realize it could cost everything.

The arrival of new crew members presents questions of who can be trusted and what to do with them.

An unexpected visitor wreaks havoc on the ship's electrical system.

When a distress call leads to a desolate planet, what the crew finds turns everything on its head.

The crew arrives somewhere that seems too good to be true, and it just might be.