<Tr> <Td_colspan="7"> Gamblers at Fortune Downs casino and racetrack end up having horrible luck, so the Librarians investigate the goings - on . They find that Fortuna, Roman goddess of Fortune, has returned and is stealing everyone's luck, and the only way to defeat her is to win in the casino despite the curse . </Td> </Tr> <Tr> <Th> 33 </Th> <Td> </Td> <Td> "And the Christmas Thief" </Td> <Td> Noah Wyle </Td> <Td> Nicole Ranadive </Td> <Td> December 20, 2017 (2017 - 12 - 20) </Td> <Td> 1.48 </Td> </Tr> <Tr> <Td_colspan="7"> Santa Claus leaves his sleigh in the Library while he and his elves go on vacation with Flynn, Eve and Jenkins . Ezekiel visits his adoptive mother and sisters, who are small - time thieves . Annoyed by their teasing, he takes his mother Lenore (Gia Carides) to the Library, where she steals the magic door . Ezekiel, Cassie and Jacob use Santa's sleigh to track her down . They find out she's been using the door to steal Christmas presents from around the world, including a stolen painting from the vault of the Bank of Thieves . While they're returning it, the Saint of Thieves (Steven Weber) catches Ezekiel and his mother, forcing Lenore to spill out the truth . He captures Santa's sleigh, which he wishes to destroy to get back at his brother, Santa . Cassie calls Jenkins, who steps through the repaired door with a note from Santa, gifting his brother the sleigh . Since he can only accept stolen gifts, the sleigh is now safe from him . Ezekiel then takes his mother on the sleigh to return all the gifts she stole . </Td> </Tr> <Tr> <Th> 34 </Th> <Td> </Td> <Td> "And the Silver Screen" </Td> <Td> Jonathan Frakes </Td> <Td> Noah Wyle </Td> <Td> December 20, 2017 (2017 - 12 - 20) </Td> <Td> 1.40 </Td> </Tr>

The librarians season 2 episode 4 cast list