Quinn takes a scuba class with Mark, who's struggling to process revelations about his late father. Shane enlists Armond to help plan a romantic evening for Rachel. Tanya leans on Belinda for support as she scatters her mother's ashes. Paula keeps a secret from Olivia.

San Francisco, 1878: Ah Sahm, a newly arrived Chinese immigrant with serious fighting skills, is introduced by a fixer named Chao to Chinatown's most ruthless tong, the Hop Wei. After impressing Young Jun, son of tong leader Father Jun, Ah Sahm is branded.

The group finds itself in a climactic showdown in their last-ditch, desperate attempt to root out El Coco.

While Gavin Belson begins to hype Nucleus, a competing compression platform, Richard learns that the name Pied Piper is already registered to a sprinkler company, forcing him to negotiate. Meanwhile, Peter Gregory proves elusive when one of his companies asks for money.

At Peter's toga party, Richard drunkenly promises to make Erlich a board member, which he deeply regrets the next morning. Later, an interesting few days continue for Richard when he discovers an intriguing connection between Peter Gregory and Gavin Belson.

Erlich asks a graffiti artist to design Pied Piper's logo… with some controversial results. Meanwhile, Richard finds out that he doesn't have much time to get ready for a live demonstration at TechCrunch Disrupt..

When Pied Piper's cloud needs some help, the team hire a hacker called "The Carver", a move which puts Richard on edge due to the hacker's reputation. Meanwhile, Jared is determined to get Peter's signature, and Dinesh gets caught up in a sexual dilemma.

Richard is concerned he won't finish his demo in time as TechCrunch Disrupt opens... and he soon gets distracted by the rumours an ex-girlfriend is spreading about him. Meanwhile, Jared isn't happy with Amanda's new position, and Dinesh is busy falling in love.

Poised to compete at TechCrunch Disrupt, the guys of Pied Piper become worried after an impressive presentation by Gavin Belson. As Jared tries to pivot the company, Richard is inspired to make big changes at the last minute.

The Pied Piper guys are wined and dined by every venture capitalist under the sun, while Monica adjusts to a new managing partner at Raviga as the company faces major changes.

Richard and the guys struggle to find a backer as they face legal and financial woes. Monica attempts to balance her interest in Pied Piper with her job. A cash-strapped Dinesh tries to put an end to the Kickstarter campaign for his cousin's new app, Bro.

While considering Gavin's proposal, Richard is approached by Russ Hanneman, an image-conscious billionaire who wants to back Pied Piper. Gilfoyle and Dinesh play hardball to get what they want. Gavin finds a new strategy in dealing with the enemy.

Richard and Erlich disagree over a potential employee. Dinesh and Gilfoyle worry that someone they recommended for the company will be receiving more money than they make.

Larry tries to rid himself of an inept assistant, offends Jeff's barber and gets into hot water over a new project.

Larry reaches out to a familiar face, gives a hotel guest sartorial advice and looks to create a diversion to help a friend's nephew.

Larry turns to a writer for advice. While searching for Susie's missing "little sister", he gets ticketed by an overzealous cop.

Larry's therapist accuses him of overstepping; Susie grows suspicious of Jeff; Larry bribes an usher at a funeral.

Larry commits a faux pas with Sammi's fiance, and tries to start over with his mail carrier and golf club security guard.

Larry invents an ingenious ploy for getting his friends out of relationship jams; Larry upsets Funkhouser's new girlfriend.

Larry angers a hot-yoga teacher, has an auspicious first date, and seethes over a run-in with an unfair Uber driver.

Bridget asks Larry for a favour on behalf of her son. Larry earns unexpected gratitude in a buffet line, and realises that tips are better than favours.

Larry is blackmailed by an employee and tormented by someone from his past. Jeff and Larry pitch a new creative venture. Susie gets turned on by a surprising source.

Larry has a scheduling conflict, takes issue with some work associates, and hosts a pair of ungrateful house guests.

A group of billionaire friends get together against the backdrop of a rolling international crisis.

Lil Rel Howery draws on his personal experiences in his relatable, uproarious stand-up.

Hays and West see a possible connection between the local church and the Purcell crimes. As the detectives search for one suspect and round up another one for interrogation, Woodard finds himself targeted by a vigilante group.

Despite his enemies’ attempts to smoke him out, Oz seeks to expand his reach in the city. Meanwhile, Victor crosses paths with a former adversary.

As a dense fog engulfs the town – and General Shaw pushes ahead with his mission – the Hanlons, Rose, Dick, and the kids must work together to save Derry.