<P> Shadowhunters follows Clary Fray (Katherine McNamara), who finds out on her birthday that she is not who she thinks she is but rather comes from a long line of Shadowhunters, human - angel hybrids who hunt down demons . The series is set in an urban and contemporary New York City . The show received a straight - to - series order on March 30, 2015, and premiered on January 12, 2016 on Freeform . </P> <P> As of August 14, 2017, 33 episodes of Shadowhunters have aired, concluding the second season . In April 2017, it was announced that the series had been renewed for a third season of 20 episodes . The first half of ten episodes is set to premiere on April 3, 2018, while the second half will air from mid-2018 onwards . </P> <Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 13 </Td> <Td_colspan="1"> January 12, 2016 (2016 - 01 - 12) </Td> <Td> April 5, 2016 (2016 - 04 - 05) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 20 </Td> <Td_colspan="1"> January 2, 2017 (2017 - 01 - 02) </Td> <Td> August 14, 2017 (2017 - 08 - 14) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 20 </Td> <Td_colspan="1"> April 3, 2018 (2018 - 04 - 03) </Td> <Td> TBA </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> </Tr>

How many episodes in season 1 of shadow hunters