Tonight, the battle for the final HoH begins. Plus, the final three celebrate and re-cap the summer.
A 14-year-old girl is found stabbed to death in an empty campground more than 50 miles away from where she was last seen.
When Thanos attacks Earth, planning to finally take over the planet by destroying the Avengers, the team discovers they are more than eight heroes - they are an ideal.
Ally learns that the new woman her Dad is seeing also happens to be the mom of a very difficult student at the A&A Music Factory.
Raphael meets a confused alien dinosaur named Zog, the Triceraton.
Casting is underway for Liv's co-star in "Voltage" and some familiar faces show up for the auditions. Meanwhile, Karen arranges a "cleansing ceremony" for Maddie to help her let go of her feelings for Diggie.
Cyd and Shelby discover a major clue to the future lab memory and it is somehow tied to Barry's Science mentor Janet Smythe, who also employs Shelby's dad.
Madison and Travis see different sides of the National Guard's occupation in their neighborhood; the family tries to adapt to the new world.
When the top three teams arrive in Tulsa, Tyler Florence takes away their phones and internet abilities: All of their research, outreach, marketing and navigation have to be done the old-fashioned way. He then challenges them to build roadside attractions to pull in customers. On their second day, the teams sell at one of the last drive-ins on Route 66. They race from car to car, knowing that each lost sale could be the one that sends them home.
It is now 1925, when secrets and rifts threaten the unity of the family, while those below stairs are faced with social changes.
A dangerous mission forces Tamsin to confront past mistakes. Meanwhile, Lauren must deliver bad news to a friend.
Dutch fights for her life against Eichhorst as Fet, Nora, and Eph frantically search the city for her. Setrakian confronts an old acquaintance on his search for the Occido Lumen, while Gus helps the Guptas escape across the border to safety.
Whyatt is excited. Why? Because Goldilocks is reading him and Baby Joy a book called A Day with Farmer Fred! But when Baby Joy says "Again! Again!", the words fall out! Then when Goldilocks puts the words back in, the book gets mixed up and does NOT make sense!
Lovely icky red blood - what is it and why do we need it? How does it transport important things around the body? Bob, the robot just has his first aid badge to get so that he can go to the robot jamboree, the trouble is he hates blood. Mark is stopped just in time by blood expert Charles Drew as he is about to give someone a blood transfusion from a dog!
The year is 1990, the rave scene has just entered England. The sound of the Stone roses lurks toward Shaun and the gang. This means that Woody and Lol are living in a domestic bliss, they are happy again. But this year will see huge changes in everyone. This is the year 1990. This is England.
Gray is shocked to learn that Silver is his father. Meanwhile, Natsu and the others continue their battle against the other Nine Demon Gates, while Minerva has a change of heart and Happy gets a mushroom-ectomy.