Tyler Jacob Moore

A manhunt goes out for Frank after he heads off on a Friday bender and uncharacteristically fails to show up to cash his disability check.

When Aunt Ginger takes her leave, little Debbie is left sad and lonely, so to ease the hurt she kidnaps a toddler from a birthday party, leaving the Gallaghers scrambling to come up with a plan to return the child.

Now that Fiona has a steady job and Lip is enrolled in college, it looks like the Gallaghers may have a shot at happiness - but when you're down and out, moving up isn't so easy.

Monica returns and the Gallagher clan are in a tizzy as they try to determine if Frank is their real father.

Debbie's day takes a turn with the arrival of Grammy Gallagher, who's been released on a medical grounds. She seeks Frank's help in finding an old pal who owes her a big debt.

The BAU team is following a serial killer who has discovered the Internet as a hunting ground for himself and has given the expression 'social networking' a completely new meaning.