Jonathon Young

While leading a covert meeting in Rome, Magnus (Amanda Tapping) encounters Nikola Tesla (Jonathan Young), an old friend from her past who confides that the Cabal has come to exact revenge on her for the events in "Fata Morgana." But Magnus realizes that Tesla's loyalties may not be as steadfast as in their college days when the two became part of an exclusive order called The Five – a group in which each is connected by a secret they have carried for decades.

Dr. Helen Magnus continues her desperate search for her daughter, Ashley, who is still held prisoner by the Cabal. Together, Magnus and John Druitt interrogate their most elusive contacts around the globe in an attempt to find her and make sense of the Cabal's plan.

Still reeling from their violent encounter with the transformed Ashley, Helen Magnus is determined to find answers about the Cabal and their plans for her daughter. Certain that Kate is still withholding information, a furious Magnus demands to know who her contact is at the Cabal. Kate is acutely aware that without Magnus and the Sanctuary, she will be killed by the Cabal herself and therefore relents, revealing her contact protocols to reach Dana Whitcomb.

In the season finale of Sanctuary, The Five, led by Magnus (Amanda Tapping), attempt to find the secret labyrinth in the decimated city of Bhalasaam. Once located, they must complete a series of cryptic tests that can only be achieved using the powers of The Five. Ashley (Emilie Ullerup) and Henry (Ryan Robbins) are held prisoner at the Cabal's weapons facility.

Magnus and Will investigate a number of inexplicable teenage disappearances. The common denominator in the case seems to be that they all recently spent time at an exclusive rehab clinic in Mexico. Paying a visit to the clinic, Magnus and Will are surprised to meet the program's director…none other than a disguised Nikola Tesla, one of the original Five. Tesla portentously explains he has been working on a treatment that cures the teens of their addictions in merely a week. Magnus and Will know Tesla has an ulterior motive and press him to disclose the real purpose for the clinic. Unable to hold back his excitement, Tesla reveals he is actually turning his patients into Vampires. Tesla's treatment is designed to create a time-release of the Vampire gene, evolving his unsuspecting patients into Vampires over a 30-year period. But when one of his patients discovers the formula to speed up the process, they find themselves up against a powerful and determined group of new Vampires. Unless they can be stopped, Magnus fears Tesla may have unleashed the resurrection of the deadliest race of Abnormals ever to roam the Earth.