Lex clashes with Leo over how to proceed in the wake of an unsuccessful plan. Meanwhile, Jana ponders what to do when she hears it may be possible to escape the cordon; and something surprising brings Jake and Katie closer.

With only one shot to take Dr. Lommers down for good, Lex carefully plans his next steps. Jana, Suzy, Teresa and Xander make their dangerous escape out of the cordon, but unexpected road blocks threaten to destroy their chance of making it home. Inside the cordon, Dr. Cannerts and Jake make a breakthrough discovery following a risky experimental treatment. Finally, with time running out, Lex is forced to make a decision that will change his life forever.