4x13 There Goes the Neighborhood, Part III
What a start with the short flashbacks right up to Aidan about to break Josh's neck and Sally's sacrifice to turn Aidan human was incredible but with him then dying you can understand why he wanted to be turn back, going back to the house after Ramona killed a construction worker was predictable and the only way to stop Ramona was to destroy the house and as Aidan was dying it had to be him but naming their kids after them was a nice tribute