In an effort to stop Madeline from shipping two planes full of ZIP to the US, the the team splits up into a high-stakes undercover mission where they intercept Madeline's son. Meanwhile, Madeline interrogates an old ally to get information on Kurt and the team.

With the surviving members of the team captured and held in FBI custody, Madeline and Ivy are in the final stages of their plan, but a few unlikely allies come out from the woodwork, trying to stop her before it's too late.