Supergirl 2×01 “The Adventures of Supergirl” Sneak Peek – When a new threat emerges in National City, Kara/Supergirl (Melissa Benoist) teams up with her cousin, Clark Kent/Superman (guest star Tyler Hoechlin), to stop it. Kara is thrilled to have family in town but it leaves Alex (Chyler Leigh) feeling a bit left out. Meanwhile, Hank (David Harewood) and Supergirl are stunned by the pod that came crashing to Earth. Glen Winter directed the episode with story by Greg Berlanti & Andrew Kreisberg and teleplay by Andrew Kreisberg & Jessica Queller (#201). Original airdate 10/10/2016.