Callie has fairly recently discovered she's gay - previously had been married to George. Her very strict Catholic parents found out, and essentially disowned her. This episode, her father randomly shows up with a priest in tow to try and 'talk some sense into her'

Of course, being a tv show it has a warm and fuzzy ending after this...

Thanks! At least I know I'll be in an orchestra :D
Kinda nervous for tomorrow.