Ric Sarabia

JD mistakes an elderly woman's happiness as her wish to stop treatment for a fatal illness, Turk and Elliot struggle to find the cause of a patient's body pain, and Carla tries to organise the annual group photo.

The BAU is called to Oklahoma to investigate a murderous clown who is terrorising a town.

When an FBI agent who was working undercover is found brutally murdered in the bathroom of a petrol station, the CSI team are called in to help the victim's partner find the killer.

As auditions for 'Grease' begin, Artie hopes to cheer up Finn, with the help of the returning Mercedes and Mike. Footballer Ryder Lynn is also introduced to the gang.

With the Nationals looming, the kids prepare a high-concept routine. When Tina bumps her head in rehearsals, her New Directions world is turned upside down.

Oz delivers a relic to Angel that will render him invincible, but Spike is determined to fight Angel to the death for the otherworldly artefact.