The Masons and the 2nd Mass order come under a brutal attack from a Espheni war machine. The Masons soon realize they need to build new relationships and work on their survival techniques.
Tom finds out what the Espheni plan is and is faced with making an impossible decision. Weaver and Pope try and escape from the Espheni prison. Matt tries to hide who he's working for and against. Anne looks for her daughter.
Tom and the 2nd Mass try to come up with an escape plan.
Tom and 2nd Mass look for refuge. Tom leads Weaver and Cochise to find Matt.
Tom runs into some strangers in the woods. Hal tries to lead the remaining survivors from Volm and 2nd Mass.
Tom gets back together with his family and the 2nd Mass. Lexi has a health crisis.
Lexi becomes more powerful then before. Tom and the rest of the 2nd mass work together alongside the Volm to try and hold off the invading forces.