While the team deals with the news that Warehouse 13 is moving, Mrs. Frederic has them load their greatest memories of their missions into an artifact for future generations.

As Sykes begins his end game, the agents discover that Helena is still alive... and teaching high school literature. Meanwhile, Jane reveals the full extent of her plan but one agent will lose their life carrying it out.

Pete and Myka race to stop Sykes from using his own cache of artifacts to destroy them and the Warehouse.

Pete and Myka capture Paracelsus but not before he makes himself immortal. When Myka's cancer becomes worse, Pete must make a deal with Paracelsus to cure his partner. Meanwhile, Claudia receives some startling news from Artie.

The team have no time to mourn a fallen comrade as they go after the person responsible, the nemesis that has been stalking Artie since he used Magellan's Astrolabe to save the world.

Pete, Myka, and Claudia set off to rescue their loved ones when Brother Adrian sends them deadly artifacts. Meanwhile, Mrs. Frederic and Steve travel to Rome and learn Adrian's dark secret.

The agents track down a cache of artifacts stolen from Warehouse 12 by the infamous Roaring Dan Seavey... and guarded by his ghost. Meanwhile, Charlotte Dupres makes her move with the help of her inside person.

Sally Stukowski and her partner make their move, attacking the Regents and using an artifact to trap them in a building and bring it down around them.

When Mrs. Frederic is stricken ill, the agents must search for a cure before it's too late. Their quest takes them to Egypt and the long-lost Warehouse 2.

Pete, Myka, and Charlotte must track down Sutton, the only man who knows where they can find Paracelsus and exchange the Philosopher's Stone for the stele that will free Claudia from her bronze imprisonment... before she disintegrates.

With the fate of the world in their hands, Pete and Myka's only hope of finding a cure to the Sweating Sickness is a drunken history professor. Meanwhile, Steven and Claudia enter Artie's subconscious in an attempt to bring him out of his coma before he fades away for good.

The team tries to track down their rogue member, and discover the artifact they have is unexpectedly powerful. Meanwhile, Claudia wonders about her future with the Warehouse team and Pete must choose between Kelly and the mission.

H.G. has created a new life for herself in Wisconsin, but calls in the agents when she comes up against an unidentified artifact. Meanwhile, Abigail joins the others on the floor of the warehouse to track down the source of mysterious tremors that threaten to destroy the building.

When we last left agents Myka Bering and Pete Lattimer at the conclusion of season 2, Myka had decided to leave the top secret team with little to no warning. As season 3 begins, Artie fills Myka's shoes with 'The New Guy,' which also happens to be the name of the season premiere episode.

While Pete and Myka investigate a series of artifact-related growth spurts, Artie reluctantly takes Steve and Claudia with him to track down Brother Adrian before he can steal more artifacts from the warehouse.

The team discovers that MacPherson is auctioning artifacts he has siphoned from the Warehouse shelves.

In the aftermath of the warehouse's destruction, the Warehouse team races against the clock to find a way to undo time itself and put right what went wrong. However, Artie finds himself facing a difficult decision when he is warned that saving the warehouse will unleash an even greater evil.

Pete Lattimer is hit in the head by an artifact and wakes up to a life where he was never born. Pete must hunt down and persuade the Warehouse team (none of whom recognize him) to go on this life or death mission with him to vanquish a long dead nemesis from the past to get everyone’s lives back.

In the season two premiere, we pick up right where we left off. MacPherson has blown Artie to smithereens, and disappeared. Is Leena really a traitor? Where has Claudia gone? How will Pete, Myka and the Warehouse fare without Artie? What other havoc did MacPherson wreak when he was alone in the Warehouse? And is there yet a new villain on the horizon?

Secret Service agents Lattimer and Bering are "rewarded" with a transfer to the top-secret Warehouse 13. They meet Artie Nielsen, the caretaker of the mysterious warehouse, who tells them about their new job. The agents are responsible for the collection of every supernatural and unexplained item that the U.S. Government has ever collected. For their first assignment, they are sent to Iowa to investigate a possible artifact belonging to a college student who went berserk and assaulted his girlfriend while chanting an Italian incantation.

Pete and Myka are after a team of bank robbers who have a distinctive weapon. Meanwhile, Artie examines the security breach at the warehouse.

Pete and Myka visit a Florida prison to probe a spate of unexplained suicides. Meanwhile, Claudia changes a light bulb with the help of an artifact.

Pete, Claudia, and Myka are called in to help Fargo, who is trapped in a virtual reality swords & sorcery game. Meanwhile, Artie and Steve are summoned to New York to recover an artifact... by FBI agent Sally Stukowski.

The theft of a sculpture leads Myka and Pete to a sacred Indian cave holding an ancient secret of creation... and destruction.

As the Warehouse team prepares to celebrate the holidays in snowy South Dakota, Pete and Myka are called upon to hunt down a malevolent Santa Claus. Meanwhile, in time for Hanukkah, Artie and his estranged father, Isadore Weisfelt reunite after 30 years.

When an artifact meant for the Warehouse turns up in the small town next door, the team finds themselves in the middle of a B-movie meltdown complete with cowboys, gladiators, sci-fi robots and beach storming marines. Their only chance of survival rests with the man who invented television, Philo T. Farnsworth.

Pete and Myka return to Washington to intercept a samurai sword that is to be presented to the president, and they discover a competitor for items that belong to the warehouse.

Pete and Myka take on a previous agent's assignment after the man's corpse turns up in the basement of a St. Louis police station.

A super-powered vigilante is at large in Detroit, and the agents try to track down the person responsible. Meanwhile, things between Leena and Claudia are still tense, and Artie is haunted by the spirit of his dead friend.

Pete and Myka are sent to investigate a town where the inhabitants' minds are being altered making them act as they please. Meanwhile, Artie is confused by the energy flows going on in the warehouse.

After receiving word that her father is dying, Myka travels home to see her parents.

A cache of Walter Skyes' stolen artifacts turn up and all six agents go into the field to recover them. Artie unexpectedly reveals his secret to Leena, while Steve begins to realize the downside of the metronome that brought him back to life.

Claudia has just been given her first assignment, but when it involves a real human torch and H.G. Wells could it be too much for her to handle? Not to mention an appearance by an old love of Artie's

Pete and Myka go to Las Vegas to fetch an artifact that is helping a couple of gamblers, but the mission goes awry when Myka becomes trapped in a famous author's mirror.

While Artie and Claudia meet with Vanessa Calder and Hugo Miller to investigate a computer virus that transforms people into clay, Myka and Pete wake up naked in bed and try to find a missing Steve.

Mrs. Frederick secretly recruits Pete to find a mole within the organization who is buying artifacts. However, when the mole finds out, they go after those closest to Pete.

While Claudia tries to help a friend and gets unexpected help, Pete and Myka investigate an artifact that causes crowds to see certain individuals as monsters... and attack them.

Pete, Myka, and Steven team up with a U.S. Marshal to track down two prisoners who used a lava-spewing artifact to escape prison. However, they discover that the Marshal is Steve's ex. Meanwhile, Artie and Claudia try to track down part of an artifact that is rendering Artie deaf...