Will agrees to babysit Marcus so Fiona can go on a job interview, but a last-minute invitation to a party complicates the situation.

Will struggles to pull off a guys' night out. Later, Andy asks Will to be his son's godfather.

Will takes Marcus to the ER after an accident with a knife.

Fiona oversees a project for Marcus' class. Later, Marcus goes on a shopping spree with Will.

Will invites Sam to move in with him after she is forced to evacuate her apartment. Later, Will and Marcus build a tree house.

Will returns to sort out a few things but ends up staying longer than planned when he sees Marcus's new "friends".

Will orchestrates his yearly halloween extravaganza and fiona finally lets her hair down.

Feeling nervous about her first real date with Mr. Chris, Fiona wants Dakota to come with her as her safety net. Will ends up tagging along as well as he attempts to woo Dakota.

The Christmas celebrations are now in full swing but Will is not having a good time. With the lawsuit still pending, Laurie advises him to settle and move on with his life. Fiona and Andy attempt to create the perfect white Christmas for Marcus.

Will is convinced that Chris is cheating on Fiona so he follows Chris to a hotel, where Chris reveals he has accepted a job offer out of the country, while Fiona prepares to tell Chris she loves him. Meanwhile, Marcus is trying to raise enough money to take Shea on a date to the movies so Marcus sells his silence to Andy for $100.