Patricia Forte

Dr. Ross copes with tragic events; Mobalage's wife tells Hathaway a dangerous secret.

Andrea leads supporters on the issue of whether condoms should be distributed at school. David makes special plans with Donna.

Sectionals is finally here for the Glee Club, but when Quinn's secret unravels, the club may not be able to recover in time to compete. Meanwhile, Sue's scheming hits an all-time high, and with Emma and Ken's marriage looming, Will makes a decision that could change his life forever. Musical performances include "And I Am Telling You...", "Proud Mary", "Don't Stop Believin", "Don't Rain on My Parade", "You Can't Always Get What You Want" and "My Life Would Suck Without You".

The communist witch hunts of the 1950s come back to haunt their survivors when Lilly and the team reopen an unsolved murder case.

Langston and Nick are called to investigate a murder at a fast food restaurant and have quite a task ahead of them when they discover that much of the evidence is coated in cooking oil.

Brad plays matchmaker to a co-worker; Penny regrets inviting Jane to her martial-arts class; Dave helps Alex with odd jobs, leading his friends to think he's not over their relationship.