Lynette's sisters Lydia and Lucy come to visit. While having dinner with Susan and Mike, Bree and Orson realize they share different views on whether their newborn baby should be circumcised. On a boat, Victor confronts Gaby about her affair with Carlos and she throws him into the ocean. Later, Bree informs Susan that she thinks Mike is addicted to drugs.

Bill joins the military group formed by Ethan, Dominic and Michael. The three men hold a young alien hostage, Isla. Catherine, Sophia and Nathan continue to search for Bill. Adina, and the aliens also set out to find Bill. Chloe accuses the blow when she realizes that Sacha killed Ash. She suggests to her increasingly unstable son to run away with her.

At the university, Sophia watches the videos recorded by Dylan, a young man they found dead, while Catherine focuses on the algorithms he left behind and which decipher the behavior of robots. Thanks to Bill's intervention, Isla manages to flee and join her family.

Far out! Korvo and Terry manipulate each other with time travel while Yumyulack grows a fat hog.

Far out! Korvo and Terry manipulate each other with time travel while Yumyulack grows a fat hog.

Woohoo! School's out, so the Solars make a splash at summer camp!

With Richard's help, Catherine discovers she can travel to another world; a new revelation puts Martha's loyalties to the test; Zoe breaks Bill out of prison.

Tom grapples with a betrayal and encounters a familiar face; Catherine looks for a solution to the dangers of the black hole.

A deadly face-off leads to a life-threatening moment; Catherine and Sam seek help for his parents.

When a lottery winner is admitted to the hospital, Bell turns to him as a potential solution to Chastain's financial problems. Nic becomes infuriated when Alec suggests she meet with an organ broker in hopes of saving Jessie's life, but after her other ideas fail, she brings the idea to Conrad. Meanwhile, Devon and Irving help Mina piece together details from her night out after The Raptor sidelines her for an upcoming surgery.

In an effort to save Chastain, Bell considers selling the hospital to a conglomerate, but Kit tries to make him see that the negatives will outweigh the positives. With Conrad’s help, Nic tracks down Kyle and pleads for him to reconsider donating a kidney to Jessie. Meanwhile, Mina voices her concern to Austin when Shira is assigned to Micah’s surgery and Devon fights for the care of a patient whom the doctors suspect is uninsured.

The doctors of Chastain are surrounded by new rules and doctors, as Red Rock Mountain Medical takes over the hospital. Conrad finds himself in a dangerous situation when the construction for a new neurosurgery center causes a gas explosion at Chastain. Meanwhile, new hotshot neurosurgeon Barrett Cain, is put to the test with a complicated surgery and Mina acts as a support for Nic, who is struggling with a devastating loss.

The arrival of a new consultant puts the doctors on edge; Amelia and Owen bring their personal problems into the hospital; April explores some unfamiliar territory.

A difficult surgery brings back pivotal memories for Meredith, Richard, Owen and Stephanie, as they work together to save a life.

Believing he is going to jail tomorrow, Alex makes a big decision about his future. While the hospital is overrun with victims of a building collapse, Richard demands answers from Bailey about Eliza's presence at Grey Sloan.

Andy, Jack and 18 other candidates take the captaincy drill test, gunning for one spot as captain of Station 19. Meanwhile, Travis is serving as acting captain while Andy and Jack are away for the day; and Ben confronts Vic about her fears.

Ryan tags along to a disaster drill training at Station 19 where he and Jack get competitive. Captain Pruitt’s health weakens and Andy is sticking by his side. Meanwhile, both the firehouse crew and police department respond to a strip mall fire, forcing Jack and Ryan to work together.

Susan goes into the woods to try to find Mike. Gabrielle gets into an argument with a meter man who gives her a ticket. Victor is elected mayor, and Gabrielle goes back to teach the meter man a lesson. Edie's ex-husband comes back to collect Travers. Lynette realizes she has feelings for another man.

While Tom tries to save his marriage, Mike and Susan get engaged. However, Susan's happiness is short-lived when she realizes Gabrielle has stolen her cancelled wedding with Ian. Meanwhile, Edie wants Carlos to move in with her, and she's ready to do anything to make it happen.

As Gabrielle prepares for her fairy tale wedding, Bree returns to Fairview with a surprise. Meanwhile, Lynette's mother Stella pays her a visit after finding out Lynette has cancer. Finally, Susan and Mike tie the knot in an unexpected location.

While Kate comes under fire from D.A. Russell, Megan has cracked the case but can't tell her team. As long as the killer has Lacey, Megan must keep what she's learned to herself.

The ghost of chef who died in a fire at a Chinese restaurant meets Melinda after the restaurant he died in burns for a second time. He demands that Melinda go out and find the person that really set the fire he was blamed for.

At work, a toxic marriage leaves lasting scars. After hours, Allura tends to her own.

The team needs to quickly figure out how to treat the virus when more and more people are becoming ill and dying.

A new case has similarities to a past case and a serial killer Megan helped send to prison.

As Megan returns to work months after Peter's death, she is thrown together on a new case with a detective from her past. A serial killer is seeking out young war veterans but the case hits close to home for Megan when the killer takes Lacey hostage.

Bree informs the housewives of what she overheard in the Mayfair house. Stella makes some special brownies to help Lynette through chemotherapy. Susan throws a charades party for the whole neighborhood.

Edie is shocked when she receives some news at the gynecologist's office. At the baby shower Bree's friends throw her, Bree's ex-mother-in-law Phyllis discovers her pregnancy is a hoax. Finally, Wisteria Lane welcomes to the street a homosexual couple.

Bob & Lee's contemporary water sculpture in their front yard prompts the Wisteria Lane neighborhood association into action. Edie finds out about the affair that Carlos is having with Gaby. Also, John Rowland wants to rekindle his romance with Gaby.

The team needs to quickly figure out how to treat the virus when more and more people are becoming ill and dying.

A new case has similarities to a past case and a serial killer Megan helped send to prison.

When a lottery winner is admitted to the hospital, Bell turns to him as a potential solution to Chastain's financial problems. Nic becomes infuriated when Alec suggests she meet with an organ broker in hopes of saving Jessie's life, but after her other ideas fail, she brings the idea to Conrad. Meanwhile, Devon and Irving help Mina piece together details from her night out after The Raptor sidelines her for an upcoming surgery.

In an effort to save Chastain, Bell considers selling the hospital to a conglomerate, but Kit tries to make him see that the negatives will outweigh the positives. With Conrad’s help, Nic tracks down Kyle and pleads for him to reconsider donating a kidney to Jessie. Meanwhile, Mina voices her concern to Austin when Shira is assigned to Micah’s surgery and Devon fights for the care of a patient whom the doctors suspect is uninsured.

The doctors of Chastain are surrounded by new rules and doctors, as Red Rock Mountain Medical takes over the hospital. Conrad finds himself in a dangerous situation when the construction for a new neurosurgery center causes a gas explosion at Chastain. Meanwhile, new hotshot neurosurgeon Barrett Cain, is put to the test with a complicated surgery and Mina acts as a support for Nic, who is struggling with a devastating loss.