Grey's Anatomy' is airing the 15th episode of its 21st season on Thursday, April 17 at 10 p.m. There are several ways to watch with a free live stream.

Watch the official “Rising to the Challenge” clip from ABC’s Grey's Anatomy Season 21 Episode 15, created by Shonda Rhimes ...

Grey's Anatomy's characters get the chance to explore their silly sides in season 21 episode 15, the show's funniest outing ...

Lucas set out to prove his abilities to Catherine and reverse her decision to have him repeat his intern year on the April 17 ...

We have a scene-by-scene recap breaking down Grey's Anatomy Season 21 Episode 15, titled "Bust Your Windows." Check it out ...

Catherine returns as Lucas tries to redeem himself on Grey's Anatomy Season 21 Episode 15, while sparks maybe fly with Jules.

A window washer's platform crashes through a hospital window, testing the Grey Sloan team's limits in a new episode of ...

The synopsis from ABC is, “A window washer’s platform crashes through a hospital window, testing the Grey Sloan team’s limits ...