You and your team have crash landed on an alien planet right in the middle of a full on battle with your enemy.  That's not the only bad news, your enemy crashed here as well.

You must gather energy by performing work tasks, and use that energy to replicate the necessary materials to:

1. Prepare to leave the planet

2. Build your defenses

3. Sabotage your enemy (if they take flight before you, you know they're coming to destroy you)