This one is already making us tense. In "Grey's Anatomy" Season 13, Episode 17, "Till I Hear It From You," Maggie's mom will return, and Owen and Amelia will finally dig into whatever the heck is going on with them right now.

This Thursday, March 9 gives us Episode 15, "Civil War" -- with Meredith in an Alex/Riggs sandwich -- and then we have the Japril standalone episode in Montana on March 16. This Episode 17 with Owen and Amelia airs March 23.

Here's the synopsis from ABC:

"Diane Pierce (LaTanya Richardson Jackson) returns to Grey Sloan, but Maggie (Kelly McCreary) is still in the dark as to why she's really there. Owen (Kevin McKidd) and Amelia (Caterina Scorsone) hash out their problems as they work a trauma case together, and Bailey (Chandra Wilson) tries to mend her relationship with Richard (James Pickens Jr.)."

Poor Maggie is always the last to know everything, but she'll probably find out about her mom's cancer this week. It's going to take a lot for Bailey and Richard to patch things up. At this point, it's not clear how the Eliza (Marika Dominczyk) situation is going to play out, but we have a couple of weeks ahead of this episode to see what happens.

The promo photos ABC shared don't show Maggie's mom at all, but they do show Owen and Amelia, and also DeLuca (Giacomo Gianniotti) and Stephanie (Jerrrika Hinton), who appear to be working with Owen on the case. There's also a shot of Jo (Camilla Luddington), with DeLuca behind her. Maybe he'll try to make a move on her, since he still seems to have a crush.

Episode 17 was directed by Kevin McKidd, who also directed the Japril standalone. In addition to LaTanya Richardson Jackson as Maggie's mom, the episode guest stars June Squibb as Elsie Clatch, and Hal Holbrook as Lewis Clatch.

"Grey's Anatomy" Season 13 airs Thursdays at 8 p.m. on ABC.

Want more stuff like this? Like us on Facebook.