The Sims family comes to Z.E.R.T. to better prepare for the breakdown of society during civil unrest. Through a series of lessons culminating in a final test, family head Charlie must guide and protect his family using the skills they have learned. Single mother Stevie fears for her son’s safety in the aftermath of a super volcano. She travels to Z.E.R.T. to refine her survival skills. 100 Deadly Skills: Survival Edition: The SEAL Operative's Guide to Surviving in the Wild and Being Prepared for Any Disaster New Price: $11.54 Old Price: $19.99You Save: $8.45 (as of 05/23/2018 01:22 UTC) During a volcanic fallout simulation, her knowledge and abilities are put to the test.