Supergirl Season 2 Episode 3: Welcome to Earth Sneak Preview

Former Wonder Woman star Lynda Carter joins Season 2 of Supergirl in next Monday's episode, which is titled "Welcome to Earth." She's playing Madam President Olivia Marsdin, and it is up to the Woman of Steel to keep her safe while she is visiting National City. Check out a sneak preview in the video above, read the episode's official description directly below, and view preview images in our gallery.

An attack is made on the President (guest star Lynda Carter) as hot-button, alien vs. human rights issues heat up in National City. Supergirl (Melissa Benoist) and the DEO are assigned to protect the President and bring in the responsible party. Alex (Chyler Leigh) teams up with Detective Maggie Sawyer (Floriana Lima) to investigate the case while Kara searches for a recently escaped Mon-El (Chris Wood), who she fears may be the alien behind the assault.

Tank Girl and Freddy's Dead: The Final Nightmare director Rachel Talalay, who recently helmed the "Fast Lane" episode of The Flash, directed the episode, which was written by Jessica Queller and Derek Simon.

Distributed worldwide by Warner Bros. International Television Distribution, SUPERGIRL is executive produced by Greg Berlanti (Arrow, The Flash), Ali Adler (The New Normal), Andrew Kreisberg (The Flash, Arrow) and Sarah Schechter (Blindspot, The Mysteries of Laura). Supergirl is based on the characters created by Jerry Siegel and Joe Shuster and appearing in DC Comics, by special arrangement with the Jerry Siegel Family.

"Welcome to Earth" episode of Supergirl will air Monday, October 24 at 8 p.m. ET/PT.