This DLC is pretty short, but intense. There is one great thing about it - the disability to use your ordinary crew members and using the new ones instead. The story is about retaking Omega by Aria and it tells about the controversy of her and the other new NPC - Nirene, both of them are trying to defeat Cerberus, but their methods are different. So there are new allies along with new enemies. Lots of battles, few dialogues. Also I'd like to mention awesome sexy voice acting by Carrie-Anne Moss (Aria).