The team get news that will affect their future — and that of the Warehouse — forever, so with the help of Mrs. Frederic they share stories to put in an artefact time capsule.

An old enemy returns and attempts to move the Warehouse, and plans to use Claudia's sister to do it.

Pete, Myka, and Artie help Pete's ex-girlfriend, Kelly, track an artifact that sucks them all into a Telenovela. Meanwhile, Claudia and Steve investigate a college student whose spine mysteriously broke in the middle of class.

Pete and Steve are sent to a Renaissance Faire to search for an artefact that's making horseless chariots and life-size chess pieces come to life, while Claudia's desperate attempt (with Myka's help) to remove the effects of the music box artefact from her sister in order to revive her have unintended consequences.

Pete and Myka investigate a series of drowning victims and run into a pair of Secret Service agent acquaintances with a secret of their own that forces them to question their own relationship, while Artie attempts to show Claudia the truth about her sister.

Paracelsus takes control of Warehouse 13 and uses his newfound abilities to terrorize the team... and then travel back in time to create a new timeline where he rules the Warehouse.