Gaius’ plans for the succession shock Livia. Tiberius grows suspicious of Gaius.

As Gaius’ rivals taste blood in the water, Livia must outwit both them and her husband if the family is to be kept together.

Alex is thrown into the unfamiliar world of the ultra-rich as he struggles to perfect his cover identity, but risks alienating his best friend by keeping the mission a secret.

An object from Earth threatens to blow SIREN’s mission wide open, while suspicion boils over into full blown paranoia.

Laura insists the family take Anita for testing when Mattie tells her that she’s seen Anita acting strangely, while Hobb is on Niska’s trail.

Harry Langford enlists McGarrett and Danny’s help to track down Lady Sophie, a teenage British royal who has run away while under his protection. Also, Grover, Tani and Junior work…