Trisha Rae Stahl

The BAU make startling discoveries as they look for a four-year-old girl who went missing while staying with a relative.

A seemingly regular day at McKinley takes an unexpected and terrifying turn when an unthinkable event has lasting consequences for the school.

It's Christmas at McKinley and while the Puckerman brothers take steps to mend their dysfunctional family, Sue unearths some long-hidden seasonal spirit.

Rachel begins school at NYADA, where she meets junior Brody Weston.

While Finn hopes to unite the warring New Directions by dividing them into pairs to perform duets, the Dalton Academy Warblers make their presence felt.

Finn enlists his former buddies to help mentor New Directions through Sectionals, while in NYC, Rachel and Kurt's quiet celebration doesn't quite go to plan.