Kal Weber

An ex-naval officer has been murdered. The case is particularly piquant for Tony, as it seems that his father is involved in the events. Tony Senior had shared a taxi from the airport with the murder victim.

Erica takes charge of the Fifth Column, and leads its members in a risky attack on Anna, who finds an obstruction in her plan to destroy humanity. Meanwhile, Ryan sneaks back onto the Mothership in a bid to rescue his daughter.

Erica visits Hong Kong on a revenge mission against Anna, who learns that Tyler may become useless to her as his phosphorous level is too low. Meanwhile, Lisa and Diana bond as they begin to form an alliance.