Charlie and Alan try to set up Evelyn with Russell the pharmacist.
Jeff and Audrey finally settle on a surrogate. Meanwhile, Russell's mother, Bunny, comes to town.
Don comes up with an elaborate story about a new job to try to impress Sam.
When Danny's ex-partner is found dead at a Hawaiian luau the Five-0 team's investigation leads them to some dirty cops and a powerful cocaine cartel.
Jake is sick and demands to hear a good story full of romance, fighting and suspense.
A s Coke cooler is converted into a Hot Dog Cooler Grill. Also: an antique barber's pole.
A trip to the South Street Seaport Museum in New York City for a nautical inspired cake; a Jersey celebrity (Nicole "Snooki" Polizzi from MTV's Jersey Shore) orders a cake for her mom.
President Martinez orders Director of National Intelligence, Blake Sterling, to root out the mole from their staff, which causes Sterling to question his judgment of people close to him. Sophia reasserts her power over Thomas and the other detainees, and she prepares them for the next leg of their mission. Elsewhere, with the aid of Madeline, Sean continues his hunt for answers, all the while trying to stay one step ahead of the covert agents who trail him.
A harmless investigation turns into an epic quest across time and space.
A delivery guy, a temp worker and a production assistant play roles in pranks. Also: a witness in the witness protection program has a disturbing visitor.
Plum finds an ideal location for the Glimmerberry Ball, but two chipmunks keep crashing her party.
Rigby gets jealous of his brother, Don, when he visits the park to stop an audit and is forced to deal with him until he leaves.
Castle and Beckett investigate the murder of an NYC subway worker found shot in Central Park. But, while investigating the murder they uncover the abduction of a young boy as well. The team must determine the motives behind the high stakes kidnapping in order to save the young boy's life.
Frances recalls her sister's one and only foray into acting in a college production, and discusses her mother's beauty before and after she became ill.
Sunil makes tea as he describes his first wedding anniversary since his wife's death.
Mike gets a taste of living with Molly's mom and sister after Molly insists he spend the night at her place.
The team faces their toughest challenge ever: tracking down Lucas North, their Section Chief, friend and one of the best agents MI5 has ever had. Harry decides the team are too close, and brings in a specialist to help with the hunt. But it will not be easy to find a man who has nothing left to lose, and as the search becomes increasingly desperate, Harry and Lucas become embroiled in a deadly game of cat and mouse.