How To Play "Escaping Mars"

About Escaping Mars, from BoardGameGeek:

In Escaping Mars, you role play as one of the last remaining citizens of Colony 7, a settlement on a post-terraformed Red Planet (which has been overrun by a ruthless gang known as The Brotherhood of Broken Skulls), in the year 3254. During play, your goal is to get past the baddies, find the "battery unit," power up the last working drone transport, fend off other citizens who have the same idea, and get out while you still can.