While the other Synths are keeping out of sight in the UK, Niska resides in Berlin as a fugitive.
Pete and Karen find out that a unique Synth is being offered for sale on the black market.
Athena gets to the UK. The evaluation of Niska's level of consciousness begins.
Mia and Ed's relationship is in danger, and things look unpromising for Niska.
Mia is compelled to take extreme actions. Pete finds the priceless Seraph that was stolen.
After questioning Milo about his morals, Athena is taken aback when he shares his plan.
In order to protect Leo from Hester's influence, Mattie seeks Max's help. An unsettling message is sent to Toby.
Hester wants to take revenge on Leo. Joe reveals something startling to Laura.