Orphan Lyra's world is changed forever by her long-absent uncle's return from the north.
Merlin arrives in Camelot but finds magic outlawed, its practice punishable by death.
Annie has been seeing Ryan for six months and still hasn't met his friends.
The final three couples take to the floor for the last time to perform three routines.
Michael is joined at the London Palladium by Ellie Goulding and Andrea Bocelli.
Robin returns from the Crusades to find his people under the rule of the new Sheriff.
