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Jon revisits establishments with quick-tempered owners to see if they've succeeded without him.
Jon attempts to help four Irish sisters who run a bar together yet never get along.
Jon attempts to rescue The Mandala Lounge, but owner Greg's arrogance and sexism prove to be a challenge to Jon's temper.
Guest Maria Menounos joins Taffer at a Los Angeles beer bar where massive debt and disagreements have triggered a family divide.
A castle-shaped bar's surly owner gets help from Jon on how to better treat the frustrated staff.
Jon attempts to help the owner of struggling sports bar who seems more interested in his sports team than his own business.
Jon encounters some out-of-control bartenders too busy dancing on the bar top to pour drinks.
Jon visits a failing beachfront bar with a rodent problem and is brought to tears upon discovering what the owners have endured.
Jon travels to Chicago, Illinois to rescue the legendary Underground Wonder Bar.
Jon attempts a re-rescue of Second Base Bar & Grill - formerly Extremes Sports Bar - in Santa Monica, California.
Jon tries to rescue Packy's Irish Pub in Milwaukee, Wisconsin.
Jon Taffer tries to rescue the third Y-Not bar in Wisconsin, the only one of its branches that's failing.
An out of control lakeside bar owner causes Jon to quit the rescue unless they can start facing reality.
Jon Taffer must enlist the help of a bar owner's ex-wife and former manager to help save this week's business.
Jon attempts to sober up a former detective who has started drowning his memories at his bar in Philadelphia.
Jon visits a bar in Queens where the three firefighter brother owners spend all their time arguing with each other.
Jon Taffer attempts to help a passionate bar owner in New Jersey.
Jon heads to a Staten Island bar where the customers have taken over by making their own food and pouring their own drinks.
The crew is attacked in a brawl at a New York sports bar discovered by customers to be ripping them off.
A nightclub deals with unruly teenagers and an insect problem in the Season 4 opener.