Young is plagued by mysterious dreams where Destiny is destroyed by alien attackers no matter what he does.
Lacy's journey to Gemenon turns into a life or death race against the clock. The pressure on Amanda and Duram for evidence mounts as Clarice gets one step closer to Apotheosis.
As the wedding approaches, Brooke tries to connect with Sylvia, while Julian looks for his best man at a guys' poker night. Meanwhile, Nathan struggles in his new job, while Haley's counseling abilities are challenged, and Skills returns to town with a new friend.
Clyde and Rani only just manage to escape from the robots. Regrouping with Gavin in a cafe, Clyde deduces that he and Rani were left behind after the robots abducted everyone else because of the two of them having been 'grounded' by the Judoon, although this fails to explain Gavin's continued presence. When Gavin runs off again, Rani and Clyde are confronted by the robots, who explain that they want the 'son and heir' (Although Clyde initially assumes that they want Earth's sun and air); Gavin's father - who he mentioned left his mother when he was young - was an alien prince, and with his father's recent death Gavin is the only viable heir to the throne. Tracking Gavin down, Clyde and Rani explain the situation to him, convincing him to remove a ring that his father gave his mother to give to him; the ring acted as a bio-damper that prevented anyone from detecting his alien heritage. With the ring removed, the robots can sense him, and he agrees to accompany them back to his father's world, his last actions on Earth being to name Clyde and Rani a Lord and Lady of his people. With Earth's population returned - having been sent to a 'warp shunt' while the robots searched - Sarah and Mr Smith create the necessary records to state that Gavin has moved to Australia, Sarah praising Clyde and Rani's accomplishments even when they were alone.
An organ-harvesting prank is featured, along with segments involving a witch, aliens and a creature that caused an accident.
Clyde and Rani awake to find they are the only humans on Earth, even Sarah Jane Smith has vanished. But the Earth is not deserted, stalking the streets of London, strange forces gather.
Blueberry forgets her manners and when the Berry Derby party where she tells everyone to act politely.
When Mordecai and Rigby try to prove that they are good prank callers by pranking the "Master Prank Caller", they are inadvertently transported into the 80's.
Buddy and Co. create a Phoenix cake for a neighborhood Irish bar; Joey tests out the new ovens with his famous Irish Soda Bread.
When Finn gets a splinter on his finger, he wants to get the best armor. In order to receive it, he must go on a quest to get the Magical Armor of Zelderon and survive one embarrassing situation after another.
Sunil confronts his inability to voice his frustrations as he recalls the first time he and his wife met their future daughter-in-law in Calcutta.
Frances struggles to remember what distracts her during rehearsals, and she gets defensive when Paul mentions in passing that he spoke to her sister about her illness. Meanwhile, Paul sees a neurologist to be tested for Parkinson's.
After spending the weekend with Molly, Mike tries to follow Carl's advice to play it cool.
Lucas is plunged further into the depths of his past when Vaughn takes his manipulations to a new level. Ruth is approached and followed by an imbalanced council snooper who is convinced he's found a dead drop. She initially keeps her distance from him, but when her curiosity gets the better of her she ends up trapped in a situation not even he could have predicted. Lucas and Harry come face to face in the pursuit of the truth.
Ryan encourages Naomi to press charges against Mr. Cannon and prepares himself for the consequences. Oscar decides to set his sights on Naomi and unknowlingly helps her with the case against Mr. Cannon. Ivy decides to tell Dixon she slept with Oscar. Navid and Silver attend the Achievement Awards dinner while Annie, Teddy, Liam and Ian attend The Undies, an anti-achievement ceremony at the Beach Club.
When Zoey enrolls in Ted's class, she manipulates his students into taking her side in the fight to save the building being torn down to make room for his project. Meanwhile, Marshall and Lily spot Robin marching in the Halloween parade of shame.
A local picker pays Rick Dale a visit with a truckload of rust laden loot the guys are asked to restore an antique popcorn machine from .
When a Navy SEAL, who's on the run for a murder he swears he didn't commit, takes hostages and safe haven aboard the U.S.S. Missouri memorial battleship, McGarrett must use every SEAL skill in his arsenal to diffuse the situation.
The Pawn Stars are presented with a letter signed by one of the 20th century's greatest leaders, Winston Churchill. Will the guys stand up and fight for a deal or will unverified signature force them to surrender? Then, Rick and the Old Man meet a guy hoping to sell a Holy Relic from the first American Saint Elizabeth Seton. Will this precious religious item bring the guys good fortune or will the Old Man remain the only relic in the shop? And later, a man brings in a gas fueled remote controlled toy Hummer with some mechanical problems. Will they take a chance at rewiring this RC truck to make a buck or will this deal run out of batteries?