Jack hides his relapse from Olivia just as she puts full faith in their relationship; Eric becomes involved in Warren's dishonest deals.

A transgender woman in a wheelchair opens a can of whoop ass on an aggressive bully. Officers find a barely dressed couple in the midst of a biting match. A reckless driver doesn't take too kindly to being pulled over.

Frank desperately searches for his missing wife, while Claire tries to come to terms with her new marriage. Claire is faced with an emotional quandry as a life-altering opportunity presents itself.

Cullen goes head to head with the new marshal to recover his arrested railroad workers. Campbell confronts Louise over a story.

Rose confronts Jack to explain the cause of Amy's recent strange behavior. Amy's past - one which she has worked so hard to suppress and deny - has come back to haunt her and the only way to protect Jack may hurt him the most. Meanwhile, Richard discovers a secret about Rose that could destroy her ascent onto The Nine. Shepherd himself is skating on thin ice as Madison continues to evade his grasp.

Maura moves out of the family house and into a lively new apartment complex, just as Sarah needs a new home after dismantling her perfect life. Josh has to reconsider his sudden vision of starting a family, while Ali finds some new boundaries to cross.

Host Chris Pratt; Ariana Grande performs.

When Red Skull comes crashing to Earth with a fleet of alien ships chasing him, the Avengers learn there's a villain in their midst a thousand times more dangerous than the Cabal ever was: Thanos! Earth's Mightiest Heroes are forced to face the fact they're big fish in a small pond - and this new villain wants to conquer the entire ocean! Will the mightiest superheroes on Earth be able to stop the super-villain of the galaxy... before he succeeds in becoming all-powerful?.

As Ned investigates the truck accident in the remote town of Lindara, Jesse comes face to face with the 'extraordinary' new powers of the law.

Batman and Katana encounter a strange Man-Bat creature, who is the experimental result of Pyg and Toad's animal army of mutant humans.

The overs continue with the 6 chair challenge as Fleur East and Helen Fulthorpe attempt to impress Simon. It is then the groups that take to the stage. The Brooks, Blonde Electric, Pow Pow Girls, Overload, Concept and Only the Young are amongst those hoping to impress Louis.

Molly's friendship with little Afghan girl Bashira grows, they are totally soul sisters! But this new-found emotional bond takes a more serious turn when Bashira warns Molly about an impending attack. Should Molly trust the child? Is she all she seems? Meanwhile Molly's brilliance at her job begins to attract the attention of Captain James, who might be harbouring an attraction to her. What Molly can't quite figure out is - does he fancy her too?

Robert is left with a difficult decision to make. Mrs Patmore has an idea which might solve everything as Daisy continues to struggle with her studies. Thomas has issues with Baxter, however will his meddling ruin her friendship with Molesley? Rose tries to convince Robert of the positives of a wireless at Downton. Lord Merton continues to pursue Isobel while Mary puts her reputation in danger when Anna is made an accomplice.

Dr. Gel finally captures Dandy, which sparks an ultra-destructive space war that could end the universe. Meanwhile, Honey and Scarlet team up with QT and Meow to save their favorite bounty hunter!.

Amy struggles to integrate back into life at Heartland when she returns from Europe and everything including her relationship with Ty is different.