Supergirl (2015)

S1E13 For The Girl Who Has Everything

Kara's friends scramble to rescue her when a parasitic alien latches onto her, plunging her into a dream realm where her family is still alive, and her home planet remains intact. Meanwhile, Alex, Hank, and the DEO face a daunting Kryptonian threat as they work to protect the Earth while Kara is incapacitated.