Ryan Heinke

Having graduated high school, Jake and Eldridge face new urgency to face their adult lives.

A disco inferno rages at McKinley when the New Directions pay homage to the iconic 70s movie `Saturday Night Fever'. Plus, Sue faces a battle.

Graduation is over but there's so much more in store! Who stays? Who goes? Are Finchel really over? Will Sue ever have that baby?! Of course McKinley High will need some new students, plus, mega-stars Sarah Jessica Parker and Kate Hudson have joined the cast to act as mentors to budding New York stars Rachel and Kurt.

The kids channel profiles pop divas Katy Perry and Lady Gaga, and whilst, in New York, Kurt and Santana hold auditions for the new band which they're starting with Rachel and Dani.

Kurt hopes to impress vogue.com bigwig Isabelle Klempt and following a makeover, Rachel allows herself to grow closer to Brody. Meanwhile in Lima, it's Blaine versus Brittany as the race for Senior Class President begins.

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