A commuter train crash initiates an emergency caesarian operation on a pregnamt woman, unfortunately the baby is transported to ashfordly General, and fate claims the life of the premature infant, making Jill more determined than ever to support Carnegie's plans for a preemy baby unit at the hospital. Meanwhile, local farmer Sam Benson (guest star Jack Deam) causes concern with his erratic behaviour, and Stella's rapist requires life-saving surgery after being attacked by the father of another victim.
The team re-opens the 1989 case of an unidentified Jane Doe when she dies in the hospital, after being comatose since the day she was shot 18 year ago.
Lou sends an uncured horse back to its owner, which causes friction with Amy. Ty builds Amy a jumping ring and Jack decides to keep Ty on at Heartland.
When a group of boys accidentally stumbles on Gisborne's weapons testing site, all but one is taken prisoner. When the alarm's raised, Robin hatches a plan. But with Gisborne armed to the hilt in an indestructible suit of armour, a rescue attempt is more difficult than it might first appear. Robin must think fast if he's to save a boy's life and stop a vital part of the Sheriff's war machine...
When the entire population of Moonbase Bishop goes missing and the Turtles stage an assault on the base, they find a bigger Sh'Okanabo with an army of drones.
Aelita's first concert with the Subdigitals is coming up, but Aelita's stage fright threatens to get the better of her. Odd meanwhile, has to find an extra ticket so he can bring a date. When the concert finally starts, XANA attacks, possessing Sophia, in order to kidnap Aelita. He also possesses Milly and Tamiya for some extra help. While Ulrich battles the two reporters, the others work to shut down the tower, all while the Subdigitals' music plays in the background. Once the threat is over, Jeremie activates a return to the past so Aelita won't miss the concert.
Kaz's scanquest in the Crystal Range goes south when Pyrithion traps Blugon in an energy field before heading up the mountain to attack Raimusa. With Blugon unable to deliver to his friend the Battlegear and Mugic he needs to beat Pyrithion, Kaz must brave a treacherous shortcut to get the delivery to the summit in time. Tom battles in the Drome with a kid who has scans of the shortcut, and guides Kaz.
Carly, Sam and Freddie do their Halloween webcast from an apartment that is rumored to be haunted. When creepy things start happening, the friends worry that the ghost rumors just might be true. Carly's strangely secretive neighbor, Mrs. Halberstadt, adds to their anxiety. Meanwhile, when Spencer forgets to buy candy, he's got a bunch of angry trick-or-treaters on his hands
Terminus, an alien scavenger, comes to steal all of Earth's resources. While the Fantastic Four try to stop him, they realize he may be unbeatable.
Otis' pranks and Abby's driving lesson has Mrs. Beady sent to a mental institution. Feeling guilty, the animals try to rescue her, much to their dismay: Mrs. Beady's doctor wants to put her on a brain transplant when he thinks Mrs. Beady has "crazy brain" because she sees the animals out the window.
Eduardo must cover his tracks after telling the nursery residents fibs that could catch up to him.
Jake comes back and wants to be just friends with Miley. Miley thinks this plan is perfect, but then finds out that Jake is doing a movie where he has to kiss her enemy Mikayla. Rico makes a bet that causes Oliver and Jackson to appreciate cleanliness more than ever.
Danny and Mike are called to the rescue to solve a murder that occurred in Cooper's suite, while Cooper claims that he can't remember what happened.
Guy showers Lucy with expensive gifts and whisks her away for a weekend.
Jimmy is short of cash, so Diana hatches a plan that will help them both.
Melinda's life is in danger when she tries to help the victim of a stalker.
Zuko, Azula, Mai and Ty Lee take a vacation to Ember Island. In the process, they come to learn more about themselves and each other as well as their desires for the future. Elsewhere, Aang and the others face off against a new adversary.
The woman that Mike arrested is charged for a murder, but the way the wounds come out,she couldn't have done it. Vicki and Henry find out the woman's true self.