The team attempt to destroy Drill once and for all using the knowledge that they've gained. However, if they fail, Drill's retribution will be swift and terrible.
Claire and the others attempt to keep Thomas Harcourt alive, in the hopes that he can provide information on Drill's ultimate goals. However, Drill sets a new plan in motion to kill his former "friend."moreless
When it becomes clear that Drill wasn't destroyed along with the rock, Claire and Sean seek out a man who underwent the same experience as Sean 30 years ago.
Sean has no choice but to help the government find a way to stop Drill, but asks for a night alone with his family first. Meanwhile, Lean continues communicating with Drill through Minx, and Frommer orders Jessup to take Henry into custody.moreless
After bringing together Drill's "friends," Claire and the FBI learn more about Drill. Meanwhile, Wes brings the recovered object back from Mali and Sean warns that it's calling to him.
While Claire meets with Sean, Wes finds a clue that leads him back to Mali... unaware that it's a trap set by Drill. Meanwhile, Lena grows increasingly nervous watching Minx for any signs that Drill is talking to her again.moreless
Claire and Wes learn where Sean is heading, and try to stop him from setting off a nuclear meltdown. Meanwhile, Minx meets Henry for the first time and gives him instructions for Drill's game.moreless
Sean takes Maria hostage, while Claire and Wes discover what Drill's next target is.
While Drill continues manipulating the children, Claire and Jessup discover that Sean was at the hospital... and is the man in Ms. Bellings' sketch. Meanwhile, the FBI trace the computer breach to Wes' home computer, and Maria receives an unexpected visitor.moreless
The team gets news that will affect their future - and that of the Warehouse - forever.
An old enemy returns and attempts to move the Warehouse - and plans to use Claudia's sister to do it.
Pete, Myka, and Artie are sucked into a Telenovela while helping Pete's ex-girlfriend track down an artifact.
Oliver decides the best way to protect everyone in the crossfire is to surrender himself to Slade before his friends are hurt further. When they realize what Oliver plans to do, Diggle and Felicity band together to stop him. Meanwhile, Laurel renews her investigation into Blood's activities, and Thea considers leaving Starling City.moreless
Pete and Steve search for a dangerous artifact at a Renaissance fair, while Claudia takes a risk to revive her sister from a coma.
While Pete and Myka investigate drowning incidents on dry land, Artie and Claudia try to find out more about Claudia's sister.
Paracelsus takes control of Warehouse 13 and uses his newfound abilities to terrorize the team... and then travel back in time to create an new timeline where he rules the warehouse.
Bo is drawn to a blogger and his wife after a source tells him that Orchestra and its plan to weaponize psychics must be exposed.
Tate starts to warm up more to Bo as they continue on the run from the cops. We learn a little about Bo's mom, therefore how Bo inherited her growing powers and where her mother is now. Bo get's a special message leading her to reunite two loved ones and Winter Saves Bo and Tate from getting captured just in the nick of time!moreless
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.moreless
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.moreless
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.moreless