Emmanuelle Vaugier

Mia's return finds Charlie questioning how devoted he is to Chelsea. Meanwhile, Alan tries to write a screenplay and the guys rush a labouring Judith to the hospital.

Charlie must make a difficult decision about his future as to which woman he wants to spend his life with, Chelsea or Mia. Meanwhile, Charlie also grows wary that Melissa has slowly moved into the house.

After saying goodbye to the late Charlie Harper, Alan meets Walden Schmidt (Ashton Kutcher), a broken-hearted billionaire.

After seeing Charlie with a lot of females in the space of one day, Alan feels Charlie is unable to control his womanising ways. Charlie goes to see his shrink who makes him realise he's missing the one that got away.

Unable to cope with the pressure from Dan, Nathan quits the basketball team. Although Haley fears that Nathan will not need her emotional support as much now, he relies even more heavily on her. Meanwhile, Brooke becomes increasingly jealous of Lucas and Peyton's growing friendship.

Charlie finds himself in a relationship that is not based on sex.