Grey's Anatomy Season 15 Episode 16, titled "Blood and Water," will put Meredith (Ellen Pompeo) in the middle of a big situation. Everything seems to be fine until Andrew's (Giacomo Gianniotti) father comes to the scene. Also, Alex (Justin Chambers) and his mom, Helen (Lindsay Wagner), appear to be well, but things are about to change.

"Meredith finds herself having to side with either Alex or DeLuca during a difficult situation, but she doesn't want to betray either of them," Grey's Anatomy Season 15 Episode 16 official synopsis read. "Meanwhile, Maggie (Kelly McCreary) reveals details about her personal life that cause a public stir, and Levi (Jake Borelli) struggles with whether or not to tell his family about Nico (Alex Landi)."

Andrew may feel threatened by Alex and Meredith's closeness in Grey's Anatomy Season 15 Episode 16 that may put tension between the three. It may be the only reason why Meredith finds it hard to take a side between the two guys.

Maggie's revelation may put her in chaos in Grey's Anatomy Season 15 Episode 16. Although she seems annoying at times, according to CarterMatt, the problem is not worth it.

As for Levi and Nico, the two seems to be celebrating the relationship they have. But, Nico has to understand Levi's decision if he will tell his family about their romance or not in Grey's Anatomy Season 15 Episode 16. Their romance is something new for Levi, so he may feel pressured if he has to tell his family about it. Although Nico worries about the challenges they have to face, they will surely overcome the struggles that will come their way.

Meanwhile, in Grey's Anatomy Season 15 Episode 16 promo, via Elite Daily, it reveals Jo (Camilla Luddington) and Alex will still be dealing with the latter's mother. After she showed up before Catherine's (Debbie Allen) party, she insisted she felt fine and healthy. However, she would be seen knitting hats for her non-existing grandkids that make Jo worried.

On the other hand, Andrew's relationship with his father doesn't seem to "dull" his romantic relationship with Meredith. In other Grey's Anatomy Season 15 Episode 16 events, Owen (Kevin McKidd) and Amelia (Caterina Scorsone) will feel the sadness of saying goodbye to their foster kids. Fans will also see Amelia doubting Owen's feelings for her.

With all the twists and turns of events, Meredith and Andrew seem to maintain their relationship. But do things change between Owen and Amelia? Find out on Grey's Anatomy Season 15 Episode 16, titled "Blood and Water," on Thursday, March 7, at 8 p.m. ET on ABC.