As ABC's synopsis foretells, the Grey Sloan Memorial doctors (and paramedics) are on a collision course in the next episode of Grey's Anatomy airing Thursday, December 5 — Season 10, Episode 11: "Man on the Moon."

"April's [Sarah Drew] sisters arrive to help celebrate April’s upcoming nuptials and quickly get on her nerves. Matthew [Justin Bruening] and Jackson [Jesse Williams] are forced to work together when they witness a terrible accident, Callie [Sara Ramirez] and Arizona [Jessica Capshaw] work hard to reestablish their relationship and Cristina [Sandra Oh] is pressured to live-stream an upcoming surgery. Meanwhile, a familiar face returns to the hospital, on Grey’s Anatomy."

As we reported yesterday — and as the invitations she doled out in last night's episode would indicate — April is zooming toward her wedding, whether her heart is in it or not.

Meanwhile, it sounds like the great loves of her life, Jackson and Matthew, will be thrown together in a rescue effort — and we have a feeling they'll be discussing a certain redheaded doctor more than the patient in question.

And, hello, we are still dying to know who this "familiar face" is!

Who do you think might be resurfacing? Let us know in the comments below!

Dan Clarendon is an assistant editor at Wetpaint Entertainment. Follow him on Twitter and Google+!