It's a life-and-death situation when a young boy falls into water pipes beneath the city of Seattle. With the clock ticking, the firefighters of Station 19 jump into action to save his life.

Catherine, Sophia, Zoe and the other survivors, finally reunited, prepare for the ultimate attack. But it is Bill who is the only one to hold the destiny of humanity in his hands, provided he is helped by Isla.

As people across the globe are experiencing hallucinations, MI5 agent Zoe contacts Bill for answers; Catherine Durand detects unusual black hole activity.

Super villain M.O.D.O.K. runs his evil organization AIM into the ground and is forced to sell it to the tech company GRUMBL. As the megalomaniacal M.O.D.O.K. struggles to regain control of AIM, he risks losing something even more important…his family!

Super villain M.O.D.O.K. runs his evil organization AIM into the ground and is forced to sell it to the tech company GRUMBL. As the megalomaniacal M.O.D.O.K. struggles to regain control of AIM, he risks losing something even more important…his family!

In a bid to save his marriage, M.O.D.O.K. takes Jodie back in time to a concert they missed when they were in college. During a detour to kill the child-version of his GRUMBL boss, M.O.D.O.K. and Jodie are attacked by college-aged M.O.D.O.K., who accidentally absorbs their time crystals, stranding them in 2002. The couple reconciles but is stuck in the past until they catch up to the present. Once in the present, they prevent themselves from ever going to the past in the first place, erasing their entire adventure from the timeline.

As people across the globe are experiencing hallucinations, MI5 agent Zoe contacts Bill for answers; Catherine Durand detects unusual black hole activity.

Diane Pierce returns to Grey Sloan, but Maggie is still in the dark as to why she's really there. Owen and Amelia hash out their problems as they work a trauma case together, and Bailey tries to mend her relationship with Richard.

When Maggie's mom's health deteriorates, the doctors are at odds over how to treat her. Meanwhile, Richard comes to grips with Bailey's betrayal over the Residency Program.

A mysterious stalker from Adam's past shows up on Wisteria Lane, and they have dinner. Detectives question Gabrielle about Victor's whereabouts. Danielle's baby puts stress on Bree and Orson's marriage. Lynette has a reunion with her long-lost stepfather, Glen. Susan notices Mike is behaving strangely.

A tornado comes to Wisteria Lane, forcing residents into basements, cellars and safe rooms, and destroying homes and lives. Meanwhile, Susan ends up at the hospital after falling down the stairs.

When Devon's patient, who was pronounced dead, suddenly revives, Conrad is left doubting Devon's judgement and wondering what happened. A well-known white supremacist falls under the care of Cain and Nic, causing the two to butt heads on how to move forward. Meanwhile, on their way to a medical convention, The Raptor and Mina get stuck in a strange town, where they uncover new information about Red Rock Medical.

Diane Pierce returns to Grey Sloan, but Maggie is still in the dark as to why she's really there. Owen and Amelia hash out their problems as they work a trauma case together, and Bailey tries to mend her relationship with Richard.

When Maggie's mom's health deteriorates, the doctors are at odds over how to treat her. Meanwhile, Richard comes to grips with Bailey's betrayal over the Residency Program.

A mysterious stalker from Adam's past shows up on Wisteria Lane, and they have dinner. Detectives question Gabrielle about Victor's whereabouts. Danielle's baby puts stress on Bree and Orson's marriage. Lynette has a reunion with her long-lost stepfather, Glen. Susan notices Mike is behaving strangely.

A tornado comes to Wisteria Lane, forcing residents into basements, cellars and safe rooms, and destroying homes and lives. Meanwhile, Susan ends up at the hospital after falling down the stairs.

An investigation involving the murder of a local singer uncovers details that reopen a strikingly similar decades-old cold case. Later on, the team rallies around Soto after she is passed over for the captain’s chair.

After a plane crashes in Atlanta, Devon is overcome by guilt at the thought that he could have prevented the tragedy. Bell, who was a passenger on the plane, makes it his personal mission to save the life of the man seated next to him. Meanwhile, Adaku returns to ask Mina a big favor, the Raptor struggles with telling his birth parents about meeting his biological father and Conrad and Nic consider risking it all to investigate a drug that might be linked to Jessie’s death.

When Maggie takes on a big case, many of the doctors are worried she's not the right one for the job while Stephanie makes a mistake treating one of Grey Sloan's own.

Meredith and Nathan have to confront their feelings when they are stuck sitting next to each other on a plane.

In the aftermath of the tornado, the residents of Wisteria Lane try to rebuild their lives. Katherine discovers someone may know her secret while Lynette faces the possibility of her family's fate.

Two weeks after the tornado, with Mike still in rehab, Mrs. Delfino gets a visit from her cousin Tim. Meanwhile, Bree desperately awaits to return to her own house. Gabrielle learns that Carlos' blindness is permanent. Katherine is unable to keep some of her secrets from the women of Wisteria Lane. Finally, a surprise wedding ceremony has its own share of secrets.

It's a life-and-death situation when a young boy falls into water pipes beneath the city of Seattle. With the clock ticking, the firefighters of Station 19 jump into action to save his life.

After Megan questions the grief counselor for one of the victim's parents, she decides to take him up on his offer of counseling her on her own issues about her father's suicide. But Megan is shocked by what she finds in his waiting room.

The shooting death of a New York mobster's son creates a tense situation when the mobster threatens to find and kill the person responsible. Megan and the team must hurry to solve the case after one suspect is killed.

An investigation involving the murder of a local singer uncovers details that reopen a strikingly similar decades-old cold case. Later on, the team rallies around Soto after she is passed over for the captain’s chair.

Emerald embraces her independence, until an unexpected turn forces the team to unite in pursuit of justice.

After Megan questions the grief counselor for one of the victim's parents, she decides to take him up on his offer of counseling her on her own issues about her father's suicide. But Megan is shocked by what she finds in his waiting room.

An investigation involving the murder of a local singer uncovers details that reopen a strikingly similar decades-old cold case. Later on, the team rallies around Soto after she is passed over for the captain’s chair.

It's a life-and-death situation when a young boy falls into water pipes beneath the city of Seattle. With the clock ticking, the firefighters of Station 19 jump into action to save his life.

In the aftermath of the tornado, the residents of Wisteria Lane try to rebuild their lives. Katherine discovers someone may know her secret while Lynette faces the possibility of her family's fate.

Two weeks after the tornado, with Mike still in rehab, Mrs. Delfino gets a visit from her cousin Tim. Meanwhile, Bree desperately awaits to return to her own house. Gabrielle learns that Carlos' blindness is permanent. Katherine is unable to keep some of her secrets from the women of Wisteria Lane. Finally, a surprise wedding ceremony has its own share of secrets.

Bailey and April work to fix things between Richard and Catherine. Meanwhile, Eliza continues to pursue Arizona, and one of Alex's previous patients returns to Grey Sloan.

April and Andrew consult with a fiery patient who has a giant, inoperable heart tumor. Meanwhile, Alex and Eliza are at odds over the treatment of a young patient, and Stephanie and Ben make decisions that could affect their careers.

On National Nurses' Day, Chastain's nurses are severely understaffed and overworked, leaving them all feeling exhausted and underappreciated. Cain performs a dangerous surgery on a new patient he won in a game of poker. Meanwhile, Conrad discovers that his father has been administered the same drug that he fears played a role in Jessie's death, The Raptor comes face-to-face with his birth mother for the first time and Irving attempts to take the next step in his relationship with Jessica.