Carley and Dean struggle to cope as when unexpected visitor arriveson their doorstep. She is argumentative, rude and has no intention of following any rules. With the approaching birth of her twin girls Carley tries to be supportive, whilst struggling with the fact she is about to become a mother twice.Dean nears breaking point as he comes to terms with the demands of parenthood, tracks down an arsonist, completes Carleys dream of having her own business and deals with their new guest an the problems she creates. When a friend steps up to lend a hand, Dean gratefully accepts, unknowingly setting off a chain reaction that is set to change the lives of everyone around him.