Syfy has announced its spring TV lineup, setting premiere dates for new series “Olympus” as well as the return of other shows including “Bitten” and “Lost Girl.”

Tuesday, March 24, 10 p.m.: “Haunting: Australia” is an eight-episode unscripted series that chronicles the world’s top ghost hunters as they traverse Australia’s spookiest locations.

Thursday, April 2, 10 p.m.: “Olympus” is a new 13-episode mythological drama series. Starring Matt Frewer, Sonita Henry, Cas Anvar and Graham Shiels, the show captures the dangerous courage of a few brave men and women who banished the Gods to the realm of the unconscious — a place they called the Underworld or the Kingdom of Hades.

Friday, April 17, 8 p.m.: “Bitten” returns for a second season of supernatural thrills with a two-hour premiere. Beginning April 24, “Bitten” will air Fridays at 9 p.m. The werewolf drama stars Laura Vandervoort as Elena, the world’s only female werewolf; Greyston Holt as Elena’s passionate partner, Clay Danvers; and Greg Bryk as the Alpha Pack leader Jeremy Danvers.

Friday, April 17, 10 p.m.: “Lost Girl” debuts its fifth and final season, in which Bo (Anna Silk) is determined to do the impossible: drag her bestie out of the underworld. Convinced her elusive and undeniably evil father is responsible for luring Kenzi (Ksenia Solo) to her death, Bo will stop at nothing until she succeeds. But in the world of the Fae, nothing is ever as it seems — and the after-life is no exception.

Saturday, April 25, 9 p.m.: “Lake Placid vs Anaconda” is an original movie that pits massive crocodiles against anacondas, while also discussing corporate greed and the limits of science. Robert Englund (“Nightmare on Elm Street”) stars in the UFO Films production.