"Grey's Anatomy" season 10 is officially underway, and creator Shonda Rhimes has posted a photo showcasing an episode table read.

In the photo, we can spot stars Patrick Dempsey, Sara Ramirez, and what looks like Ellen Pompeo surrounded by the production team.

Table read!!! #season10 pic.twitter.com/3sH9bxJoXb

— shonda rhimes (@shondarhimes) July 16, 2013

According to Twitter and online sources, "Grey's Anatomy" writers have been breaking season 10 and are a few episodes in, and the crew officially begun production yesterday for shooting July 17.

“@jcapperslove: @biermann grey's starts on 17 of july or monday?” Crew Monday, shooting the 17th — Biermann (@biermann) July 5, 2013

The table read picture, then, is more than likely the season 10 premiere script!

In addition, according to TVLine's Matt Mitovich, the season 10 premiere could be a two-hour premiere.

"It appears that things refuse to remain sleepy in Shonda Rhimes' Seattle, seeing as the season 10 opener will involve a group of firefighters," writes Mitovich.

"There may also be a bit of a 'two-parter' feel to the ABC drama's return -heck, maybe it will even turn out to be an actual two-hour premiere a la Seasons 5, 6 and 8 - since several of the guest-starring roles, including one fireman's fiancé, will span two episodes."

Stay tuned as more "Grey's Anatomy" spoilers come in as production begins!