As Michael and his followers settle into new accommodations, a tough-talking general takes control of the DNS. Also, Luther witnesses a brutal act.

Desmond’s health worsens, forcing Luther down a dangerous path. Later, Luther receives a surprising offer and Michael lays down the law.

Following an urgent trip to the Arctic, a scientist and his friend are quarantined with an illness that soon escalates into something sinister.

Michael continues to prowl for victims while Luther struggles with a traumatic loss and painful accusations. Also, Kaylee makes a connection.

The government struggles to contain and understand the outbreak. Kaylee interviews Luther’s ex-wife while Danika pays her sister a visit.

Luther pleads with the DNS to bring in Michael alive, but other pursuers have less peaceful intentions. Meanwhile, Danika’s urges grow stronger.