Two ships are wrecked and a tidal wave races toward the coast of Mumbai, India, following Wexford's attempt tohug "Big Bertha". When Wexford tries tohug the creature again, Magnus risks her life to intervene in the Season 3 premiere.

Will suffers from amnesia after his near-passing experience; visitors are intent on finding out what is in his memory.

Magnus and the team go to a bank to retrieve an Abnormal that was stashed in a safe deposit box, which not only hatched prematurely but also escaped, prompting Kate to enforce a less-than-subtle quarantine of the bank's customers.

Nikola Tesla surfaces, sending Helen an SOS from the Colombian Highlands - but Will doesn't think he can be trusted.

Kate becomes host to an abnormal that grants super powers.

A werewolf sighting brings Will and Henry to England, where they learn of suspicious happenings at a psychiatric facility. Meanwhile, Magnus and Tesla work together to probe the mysteries of the holographic city.

An anonymous call for help brings Magnus, Will and Kate to an eerie, abandoned building, where Magnus encounters a unhappy assailant.

With Adam on lockdown at the Sanctuary, Magnus investigates his connection to Hollow Earth - and Druitt - while being forced to reveal dark secrets about the chaotic origins of the Five.

Knowing that Helen's only hope for a cure lies in Hollow Earth, Will takes command of the Sanctuary and, ignoring her misgivings, releases Adam-Hyde - who promises to lead them to the secret subterranean city.

Seeking a gateway to the secret subterranean city, Magnus leads a treacherous mission to Tibet - telling a bitter Adam that he must stay behind while promising to bring back a cure for their radiation sickness.

Magnus continues her struggle against Ranna Seneschal, the Hollow Earth tyrant who ostensibly put her and her team to passing in Hollow Men, Season Three's first-half-ending cliffhanger.

Returning home from an overnight trip, Magnus is stunned to find the Sanctuary open and in a complete shambles - only hours before a scheduled visit by a UN security inspector. The mystery widens when the only one Magnus can find - a bruised and battered Henry - can't remember what happened or where everyone else is.

Looking to share a quiet, "normal" evening out with Abby, Will and his date are abducted en route to the restaurant by a desperate gang leader who faces certain passing without their help. Then, upon learning the abductor's identity, Magnus suddenly ceases all attempts at rescue.

Magnus reaches out to Hollow Earth for help when Will suddenly begins transforming into a mysterious, scaly creature.

Operation Dinner Out Redux? Will and Henry just want to get away for a quiet evening of double-dinner dating, but Magnus insists that they drop off a small crate at the docks while they're at it - which is fine, until the abnormal inside insists on breaking out and flying away.

Magnus and Tesla inadvertently stumble upon secrets of the Vampiris race when they investigate a former Praxian stronghold - and encounter Afina, Queen of the Vampires. Meanwhile, Kate's past comes back to haunt her.

Looking back at the events leading up to the momentous D-Day invasions at Normandy during World War II - events which directly pitted Magnus, Watson and Griffin against the Nazis.

A colleague vanishes amid unexplained disappearances in Normandy, France, where Magnus and her team run into a military blockade during their investigation.

Helen and Will find themselves in an alternate reality, living as suburban neighbors, who experience unsettling dreams that disrupt their new careers.

Receiving word that a large group of Abnormals has been spotted near a South Dakotan cave entrance, Magnus realizes it's the first wave of Abnormals emerging from Hollow Earth.