A simple scenario to keep you entertained (or frustrated) for a few hours. You have to find the way out with whatever units you manage to find/keep alive
Spoiler Alert: Reviewing the map in the editor prior to playing can help you find the right path and spoil the fun.
Hints: Some doodads are for hints. Beware of those hydras on high ground. These zerg are not the smartest of all creatures - use it to your advantage.