The agents capture Paracelsus, but soon discover that's exactly what he wants. Meanwhile, Myka goes in for surgery and Artie tells Claudia a family secret.
After bronzing Claudia, Paracelsus escapes with the only artifact that can cure her, and the team has to hunt him down before it's too late. Meanwhile, Claudia's link to Warehouse 13 endangers the building and Mrs. Frederic.
Pete and Myka are hot on the historical trail of pirate Roaring Dan Seavey, who engineered the theft of artifacts from Warehouse 12.
The agents investigate when a series of mysterious incidents occur at an expensive gated community, and soon discover that someone is using an artifact to get revenge.
Pete, Myka, and Steve team up with a U.S. Marshal to track down two prisoners who escaped prison during a volcanic eruption.
H.G. calls the agents when she needs help with an artifact. Meanwhile, a series of mysterious quakes shake the warehouse.
While Pete and Myka travel to Las Vegas to investigate a series of deaths involving falls from great heights, Claudia and Steve become involved in horse racing. Meanwhile, Artie tries to cope with the B&B's new manager.
An artifact sucks Pete and Myka into a 1940s detective novel, but their lives are in real danger. Meanwhile, Artie, Steve, and Claudia go after a phantom car thief.
While Artie tries to get back to work, Pete and Claudia investigate an environmental group that may be tied to an artifact... and a murder.
Fighting off the symptoms of the Black Orchid artifact, the team rushes to undo the Sweating Sickness that Artie unleashes in a worldwide pandemic.
After discovering the truth about their situation, the agents gather at the warehouse and set out to find the person responsible for the warehouse thefts and the attacks on their loved ones... before the responsible party endangers the world.
While Brother Adrian ramps up his campaign against Artie by targeting the team's loved ones, Steve and Mrs. Frederic discover the reason behind the Brotherhood's attacks.
While Pete and Myka try to track down an artifact that causes people to rust to death, Steve and Claudia try to find a way to cut him off from the metronome artifact that is keeping him alive.
Steve, Artie, and Claudia take try to find where Brother Adrian has been hiding. Meanwhile, a powerful company executive may have created a new artifact-related drug with the ability to increase people's height, and Myka and Pete must try and stop it.
An artifact from a previous case, Lewis Carroll's mirror, turns up missing from storage and the team set out to recover it.
While Artie and Steve investigate the theft of artifacts from the warehouse, Mrs. Frederic invites Claudia to lunch and Pete and Myka investigate a miraculously-healed athlete.
The team get word that an artifact is at the prep school where Hugo Miller's nephew attends. While Pete and Claudia check out the prep school, Myka and Steve track down another artifact in New Orleans.
Pete and Myka require the rest of the team when they have to track down the remaining artifacts from Sykes' arsenal.
The Warehouse agents go after an artifact that causes persons to hallucinate and riot.
With the destruction of Warehouse 13 and the death of three of their friends, the only hope left for Myka, Pete, Claudia, and Artie is to recover an obscure artifact which may not even exist... and which could have deadly consequences when they use it for personal gain.