A new surgical attending Cole Guthrie joins Angels Memorial with the help of his estranged father and clashes with Leanne over their contrasting approaches to medicine. Christa has a crisis…

Will, Diane and Alicia help Elsbeth Tascioni when she is arrested; Eli and Jordan give Peter conflicting pieces of advice.

Nathan James finds itself trapped between the submarine and civilian blockades.

With their mission now fully dedicated to spreading the cure, Nathan James puts a call out to civilians to meet at pre-selected ports across the country.