It follows the life of a bisexual[5][6] succubus named Bo, played by Anna Silk,[7][8] as she learns to control her superhuman abilities, help those in need, and discover the truth about her origins.

On February 28, 2013, Showcase renewed Lost Girl for a fourth season consisting of thirteen episodes, with production starting in the spring.

[28] Showcase announced its 2013 Fall schedule on July 11, 2013, with Season Four premiering on November 10, 2013, and its Sunday night broadcast changing from a 9 p.m. to 10 p.m. time slot.

[10] As a lead-in to the premiere of Season Four, Showcase announced the streaming of a four-part original web series on the Lost Girl website, with the first episode released on October 13, 2013.

[13] The premiere of Season Four was preceded by Lost Girl: An Evening at the Clubhouse, a one-hour special featuring cast-on-cast interviews, webisode footage and a sneak peek.

During the pre-show, cast reflected on both the past and upcoming seasons, revealed behind-the-scenes stories, and responded to fan questions.

[30] A series of four webisodes were created as a promotional lead-in to the premiere of Season Four on Showcase, with the first installment announced on October 11 two days before its release.

[37] In the annual AfterEllen Visibility Awards, Lost Girl, Lauren Lewis, and Zoie Palmer won the categories in which they were candidates for year 2013.

[39] The Season 4 DVD and Blu-ray for Region 1 (Canada and U.S.) was released by Giant Ape Media (Funimation SC) on June 24, 2014.