Rachel and Kurt pay a visit to Lima as the glee club launches its production of “Grease.” Meanwhile, Cassandra July returns to shake things up in Rachel’s life, and Santana comes back to lend a helping hand. Musical performances include “Greased Lightning, Look At Me I'm Sandra Dee, Beauty School Drop Out, Look At Me I'm Sandra Dee Reprise, There Are Worse Things I Can Do and You're The One That I Want.
