Being Human US 4.01-4.02 Official Descriptions.
Episode 4.01 - Old Dogs, New Tricks
Josh is trapped inside his wolf as Nora and Aidan struggle to contain him; Sally finds herself imprisoned in a mysterious place with Donna.
Episode 4.02 - That Time of the Month
Aidan and Kat take their relationship to the next level; Aidan encounters someone from his past; Sally uses her newly acquired powers to help Nora try to free Josh.