Credit: Ellen Pompeo's Instagram Photo: Ellen Pompeo and Sandra Oh on Grey's Anatomy Season 10 Set — Meredith and Cristina Face Off!

Ready to see the surgeons of Grey Sloan Memorial get down and dirty as they duke it out on Grey's Anatomy's landmark 200th episode? They're about to wage war, as Shonda Rhimes tells TV Guide!

Here's what we know so far about the pivotal installment — Season 10 Episode 4, "Puttin' on the Ritz," airing October 10 at 9 p.m. on ABC. Jackson (Jesse Williams) will organize a glam fundraiser to benefit the hospital and its reconstruction following that epic superstorm — even enlisting the help of circus performers. But things go a little crazy, and some incident inspires Mer to break her maternity leave and return to the OR.

But here's what Shonda & Co. can spoil about aforementioned craziness: The surgeon who brings in the most donations will be reward with a cut of the profit going toward their department. Let the games begin!

Meredith (Ellen Pompeo) and Cristina (Sandra Oh) will be as "hypercompetitive" in the contest as they were as surgery-hungry interns circa Season 1. Mer will rock a sexy Gucci dress for the occasion, while Cristina gets her potential donors nice and liquored. And Callie (Sara Ramirez) will get in on the action, too, trying to earn sympathy by telling a "pretty horrible lie" about her marriage to Arizona (Jessica Capshaw).

We know already we're gonna be glued to our TV screens come October 10.

Source: TV Guide

Credit: Mashed Potatoes Photo: All the Times Meredith Grey Nearly Died in One Video
Dan Clarendon is an assistant editor at Wetpaint Entertainment. Follow him on Twitter and Google+!