Claudia Donovan visits Eureka to see if Fargo’s promises of wondrous devices are true, but she finds herself in the middle of a mystery suitable for Warehouse 13 when objects begin to appear randomly around the town and GD, and it must be solved before there are deadly consequences.
Tommy loses his nerve when a young driver's recklessness reminds him of his daughter's new lifestyle. After a meeting fails to put Colleen on the wagon, Tommy is forced to pursue a more aggressive method to get her life back on track.
Mozzie fears that the object of his affection has been kidnapped, and turns to Neal and Peter for help.
Douglas Fargo of Eureka’s Global Dynamics is sent to Warehouse 13 to help update its aging computer system. This triggers a seemingly sentient computer virus that sends the Warehouse into lockdown and traps the team inside.
Cal involves his team in a cover-up when a fighter from an underground extreme boxing fight club for illegal aliens is murdered.
A mysterious cipher is being scrawled on the walls around London. The first person to see the cipher is dead within hours of reading it. Sherlock plunges into a world of codes and symbols, consulting with London’s best graffiti artists. He soon learns that the city is in the grip a gang of international smugglers, a secret society called the Black Lotus.
As Eureka celebrates Space Week, Dr. Ramsey unveils his cutting edge invention that could allow colonization of Mars. Unfortunately, a slight malfunction may cause it to incinerate Eureka before the dream is realized. Equally bad is that Eureka’s go-to guy for crisis intervention has just gone to Boston to visit his daughter at Harvard.
A night of heavy drinking turns ugly when Tommy blacks out and loses control. The next day, the crew struggles to put the pieces together as they search for the whereabouts of Colleen.
A talented criminal has copycatted a Neal Caffrey crime, and evidence points to a suspect on a college campus. Meanwhile, Alex returns with some bad news and Diana discovers the music box is hiding something.
When young super models rapidly age 50 years overnight, Pete and Myka go undercover in the glam world of high fashion to discover who – and what – is behind the transformations.