• ‘Grey’s Anatomy’ Season 13 episode 1 spoilers, airdate update: What’s next for Meredith and Nathan, Amelia and Owen and more

‘Grey’s Anatomy’ Season 13 episode 1 spoilers, airdate update: What’s next for Meredith and Nathan, Amelia and Owen and more (Photo : Grey's Anatomy/Facebook/ABC)

After two-hour special segment, "Grey's Anatomy" Season 12 is set to air episode 20 airs April 21, Thursday. The upcoming segment is titled "Trigger Happy" and will focus on former couple Callie and Arizona. Here are the detailed spoilers for the next chapter of ABC's medical drama. Read on to find out what happens next.

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[Spoiler alert! This article contains spoilers for "Grey's Anatomy" Season 12 episode 20 "Trigger Happy." Read on only if you want to know more about it.]

The upcoming segment will see some tension build up between the former couple. Even though the episode is more than a week away, the network has released a synopsis for "Grey's Anatomy" Season 12 episode 20 on its official website.

According to the press release, Callie makes an important decision that will impact Sophia's life in a major way. Callie's decision leaves Arizona unsettled and agitated because Callie did not consult her before taking the decision.

Meanwhile, TV Line has shed some light on Callie and Arizona's situation. According to the spoilers on the website, Callie is planning to make a big move in her life as well as in her relationship with Penny. She is considering moving to New York with Sofia to be with Penny. However, as Callie contemplates over her decision, she wonders how it will impact Sofia as well as Arizona.

In episode 18 & 19, fans will see Arizona make a decision that will impact her relationship with Callie. Is this the reason why Callie decided not to consult on matters related to Sophia?

In addition, doctors at the Grey Sloan Memorial hospital come together to save the life of a boy who was inadvertently shot with a gun.

Note: A promo video for the upcoming segment is not out. However, the trailer will be made available as soon as it is released by the network. So, stay tuned.

"Grey's Anatomy" Season 12 episode 20 "Trigger Happy" airs April 21, Thursday at 8:00 pm on ABC. Stay tuned for more spoilers and updates. Meanwhile, let us know what your thoughts are about the upcoming episode in the comment section below.

UPDATE

A promo video for "Grey's Anatomy" episode 12X20 is out. Scroll down to watch it.

Credit: YouTube.com/Grey's Anatomy - GreySloan