• The cast of the ABC drama series "Grey's Anatomy" poses with their award for Favorite Network TV Drama during the 2015 People's Choice Awards in Los Angeles, California January 7, 2015.

The cast of the ABC drama series "Grey's Anatomy" poses with their award for Favorite Network TV Drama during the 2015 People's Choice Awards in Los Angeles, California January 7, 2015. (Photo : REUTERS/Danny Moloshok)

"Grey's Anatomy" Season 11 airs Episode 18 titled "When I Grow Up" on April 2, 2015. The upcoming episode will focus on two cops who arrive at the hospital during a school field trip. Meanwhile, the show will delve deeper in to Owen and Amelia's storyline and return of Derek at the Grey Sloane Memorial Hospital. Here are few spoilers for "Grey's Anatomy" Season 11 Episode 18. Read on to find out what happens next.

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[Spoilers alert! Read only if you want to learn more about it.]

Show's official channel ABC has released synopsis for "Grey's Anatomy" Season 11 Episode 18 on its website. According to the press release, things get dramatic at the hospital when school children witness the arrival of two badly wounded police officers in the emergency room of the hospital.

Callie takes the case of one of the cops with a leg injury. Show's executive producer Betsy Beers revealed details about it on her weekly podcast Shondaland: Revealed (via Wetpaint). According to Betsey, "When I Grow Up" is a "great episode." Fans can expect some surprises in the upcoming segment as disclosed by the EP. Meanwhile, Callie will perform a "great surgery."

According to TV Line, this police officer is the new character Jack Pruitt. The character will be played by "True Blood" alum Kevin Alejandro. Previous report by the aforementioned TV show publication states that Jack Pruitt is possibly a recurring character. He is described as "a strong, rugged, handsome and tall police captain in his late 30s." Several media outlets speculate that he might be Callie's rebound after Arizona.

The synopsis for the next episode states that Stephanie will lay her eyes on one of the chaperones, played by "Hawaii Five-O's" alum Taylor John Smith. At the same time, things are going to get awkward between Amelia and Owen. Amelia is clearly drawn towards Owen. However, she is not ready to accept it and will be seen struggling with her feelings for Owen in this episode.

Meanwhile, Derek is back and fans must brace themselves for a Shepherds showdown. A promo video (as published by Promos and Previews) for Episode 18 of "Grey's Anatomy" teases rivalry between the two siblings. Scroll down to watch the video.

What do you think of this episode? Sound off in comments section below. "Grey's Anatomy" Season 11 Episode 18 "When I Grow Up" airs April 2 at 8:00 pm on ABC. Come back for more spoilers.