Grey's Anatomy

Grey’s Anatomy Season 10, Episode 20 Spoiler Photos: Mer and Der Fight in the O.R.

No, we don't want no scrub-room fights! But in Grey's Anatomy Season 10, Episode 20 — "Go It Alone," airing April 17 — it looks like Meredith (Ellen Pompeo) and Derek (Patrick Dempsey) are embroiled in a major tiff as they prepare for an operation. In the end, Meredith is left glaring through the window at her neurosurgeon husband as he gets to work.

We also get a preview of some of the cases of the week. The two women pictured in a hospital room are probably the characters named Nova and Chelsea referenced in casting sides from the episode — the former of whom suffers from frequent seizures.

And we see that the surgeons have to yank shears from a dude's skull, with Jo (Camilla Luddington) handing the just-freed shears to a horrified Leah (Tessa Ferrer). We hope there's a "Scissor Sisters" joke in there somewhere!

Click through for the rest of the pictures!

Grey's Anatomy airs Thursdays at 9 p.m. ET on ABC.