In the first season finale, Captain Kirk and the crew of the Enterprise find themselves up against an unlikely foe. But how can you fight something that manages to take over your body and mind? And what happens when one of the most important members of the crew falls victim? Find out on the season finale of Red Shirt Energy.

Love and duty collide when three members of the Enterprise crew find themselves trapped in 1930s America. Spock knows their presence is a threat to the very future they came from. Find out more in The City on the Edge of Forever.

This was one of those episodes where you really needed to keep a close eye on everything otherwise you'll end up missing the major plot points. A seemingly crazy man with a crazy bit of facial hair is battling himself in more ways than one. How will the crew make it through The Alternative Factor?

War is coming between the Federation and the Klingon Empire. Kirk and Spock are ordered to align with a planet, but they're not willing to fight back even when the Klingons invade. Soon it becomes a battle of survival as Kirk and Spock find themselves stuck on a planet full of enemies.

The Enterprise crew finds itself up against a creature they've never seen the likes of before. It's killing miners and eating through the rocks. Will the crew make it out alive and discover why this creature is attacking them? Find out in The Devil in the Dark.

After facing total annihilation, the Enterprise finds a calm and relaxing world where everyone there seems happy. But like many places like this, everything is not as it appears. Find out what happens when Spock becomes an emotional person and Kirk must become logical with anger.

The Enterprise discovers what happens when two planets continue fighting for 500 years. The planets don't face destruction, but this new form of warfare still results in mass casualties. Find out how the crew fights for its own survival when they're the ones on the chopping block.

Even someone who has never seen Star Trek would know about this episode even if they don't know the title. This episode introduced the Enterprise to the one and only Khan. In his first appearance, Khan displays what makes him so dangerous and why so many willingly followed him during a time of upheaval.

The world is a peaceful and friendly place, but what if that's not reality? What if there was some force keeping everybody from ever truly being themselves? The crew of the Enterprise finds out what it's like when a seemingly omnipotent being takes control of everyone's behavior on this episode.

What happens when the highly decorated James T. Kirk faces consequences for his actions? Find out during "Court Martial." It's a roller coaster ride from beginning to end.