If you're stuck in a loop, try walking in a straight line.

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

Ron aids in Natalie's wedding preparation and continues to try to solve the problem.

Richard pushes himself to the brink of sanity while trying to move ahead with his next big idea. Eyeing a comeback, Erlich pressures an uncooperative Jian-Yang. Monica sets a trap at Raviga to improve her standing with Laurie. Big Head enters the world of academia.

When Richard reaches out to an unlikely ally, Jared worries about the company he's keeping. Gilfoyle gets tough on security in the wake of Dinesh's latest dalliance. Concerned about Jian-Yang's commitment to his app, Erlich takes matters into his own hands.

Cracks in Richard's latest partnership become more apparent when he's forced to deal with an unexpected interloper. Dinesh scrambles to find a way out of his new relationship. Surprising developments afoot at Raviga leave Monica troubled deciding which horse to back.

On the hunt for financial support, Richard looks outside the tech bubble, and crosses paths with a contentious figure from Pied Piper's past. Erlich reaches out to Monica and Laurie in search of a new endeavour. A launch gone wrong finds Dinesh and Gilfoyle at war.

Richard decides to stand up to a patent troll, but his defiance comes back to haunt him. Gilfoyle goes to extremes to battle Jian-Yang's new smart fridge. Jared embraces multiple identities in an effort to reduce costs, while Erlich mixes with a group of alpha males.

Richard ponders a deal with the tech world's latest "it" boy. Jack, meanwhile, faces setbacks.

The Pied Piper guys try to pull off a stealth plan at Hooli-Con.

Richard finds himself in a web of lies; Jared plans his exit; Jack bets big; Gavin plots a comeback.

Now that Pied Piper has ample funding and new offices, the pressure to get things right stymies Richard and forces him to grow the company in a way he hadn't planned. After returning to Hooli, Gavin worries about the prospect of becoming antiquated.

Panicked by suddenly leading a much larger team, Richard finds himself managing a number of small conflicts in his efforts to unite his new employees. Jian-Yang goes to court, and Gavin is met with pushback over his signature and what it says about him.

With their tenth wedding anniversary approaching, Larry reminds Cheryl of a "present" she promised him back when they got engaged. Later that night, a karaoke performance ends up landing Larry an unlikely plum role.

Larry reconnects with Michael, his blind tormenter, to bad results. Meanwhile, Richard Lewis asks Larry for an unusual favour, and Larry's poor party etiquette embarrasses Cheryl.

Larry mends fences with Michael by setting him up on a blind date. Jeff admits to a sexual fantasy that peeves Larry. Ben Stiller delivers an ultimatum, and Larry levies a steep accusation against a group of mentally challenged workers.

Larry inadvertently traumatises the Greenes' daughter at their dinner party. Later, Larry accuses a local weatherman of misrepresenting the forecast for personal gain.

A bag of raisins and cashews threatens Larry's working relationship with David Schwimmer, while a dirty locker threatens his golf-club membership.

A bag of raisins and cashews threatens Larry's working relationship with David Schwimmer, while a dirty locker threatens his golf-club membership.

Larry finds an innovative way to use the HOV lane to get to a Dodgers game, and pays a price for getting his dad some medicinal marijuana.

Larry's decision to buy a surrogate mother a baby-shower gift backfires, as do his efforts to pass a routine physical.

A surreptitious video purchase endangers Larry's relationship with his assistant, Antoinette, and nearly costs Jeff and Susie their best friend. Elsewhere, Cheryl gets medical treatment from an unorthodox source.

Larry contemplates a tempting offer from his Hasidic dry cleaner.

Larry opens in "The Producers" on Broadway.

On his 80th birthday, media magnate Logan Roy shocks his family by announcing he's staying on indefinitely as CEO of Waystar Royco. The news shatters son Kendall, the heir apparent, while tempers flare as Logan's other children raise objections over Logan's intentions.

Logan's incapacitation sets off a heated succession debate among his children, as the board rushes to inform the media about leadership contingencies before the stock market opens. Kendall makes an impassioned final plea to keep Waystar Royco in the family.

With Waystar's stock plunging to dangerous lows, Kendall is confronted with a major crisis involving a secret bank debt. Upset with Marcia for pulling rank in the Roy apartment, Shiv decides to enlist an old paramour to conduct a background check on Logan's third wife.

With the company's annual foundation gala approaching, Kendall polishes up his speech while enlisting an on-air personality from the Waystar's ATV Networks to accompany him. Shiv tries to minimise damage from a sordid photo that threatens a client's political future.

After hearing Logan's plan to expand to local TV, Kendall plots a vote of no confidence against his father. Greg drives his ornery grandfather from Canada to New York for a Thanksgiving reunion with Logan. Tom grows concerned about the terms of his prenup with Shiv.

Carrie asks Che to be her moral support at a conference for widows. Miranda broaches an uncomfortable conversation with Steve.

Ayla goes to see her OB-GYN sister for a quickie exam and prescription refill; Isaac and Pete pick up a freebie couch.

In 2018, Seattle FEDRA confronts an unexpected foe. Ten years later, Ellie and Dina find themselves in the middle of a bloody battle between the zealous Seraphites and a ruthless militia.