Weaver's mental state continues to deteriorate causing trouble for Tom and Hal on a reconnaissance. Pope builds a potent weapon to use against the aliens & Anne makes a shocking discovery performing a Skitter autopsy.
The 2nd Mass come face to face with Skitters & Mechs when Tom & Hal lead a mission to rescue Ben and the others. Tom's search for answers to nagging questions could jeopardise the plan presented by Dr. Michael Harris.
Tom and Hal lead a team to find more motorcycles for the 2nd Mass after Pope provides details on where they can be found. Back at base, Dr. Harris and Anne disagree over the best tactic to gather more intelligence.
Hal devises a new plan to save the captured teens but pulling it off could put someone in danger. Following a sudden tragedy, Anne makes a discovery that could mean the difference between the plan's success or failure.
Lt. Terry Clayton of the 7th Mass arrives at 2nd Mass HQ to warn of an impending alien attack. Clayton claims to have a plan to lead the children to safety but his plan is met with strong resistance by the parents.