Sometimes, you don't know who or what the enemy is. You don't know where they are, and when they'll strike. Sometimes, they might even be among you.
Last time on An Escape from Homeworld: We started off with a bunch of newcommers, and Jasper, Ice and some others set off on a mission to brinwash Peridot. We left off with Silicon finding them as she was analyzing satilite imagery.
Same rules apply, here are the Previous Episodes:
Episode 1: http://steven-universe.wikia.com/wiki/Thread:399661
Episode 2: http://steven-universe.wikia.com/wiki/Thread:405758#501
Episode 3: http://steven-universe.wikia.com/wiki/Thread:419938#495