<Li> Rudi Dharmalingam as Milan (Series 3) </Li> <Li> Salina Shrestha as Tara (Series 3) </Li> <Table> <Tr> <Th_colspan="2"> Series </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> <Th> Average UK viewers (millions) </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 5 </Td> <Td_colspan="1"> 21 September 2014 (2014 - 09 - 21) </Td> <Td> 19 October 2014 (2014 - 10 - 19) </Td> <Td> 5.24 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 5 </Td> <Td_colspan="1"> 7 September 2016 (2016 - 09 - 07) </Td> <Td> 5 October 2016 (2016 - 10 - 05) </Td> <Td> 6.07 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> </Td> <Td_colspan="1"> 10 October 2017 </Td> <Td> TBA </Td> <Td> TBA </Td> </Tr> </Table> <Tr> <Th_colspan="2"> Series </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> <Th> Average UK viewers (millions) </Th> </Tr>

How many episodes in season 2 of our girl