<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"> March 1, 2015 (2015 - 03 - 01) </Td> <Td> May 3, 2015 (2015 - 05 - 03) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> September 27, 2015 (2015 - 09 - 27) </Td> <Td> May 15, 2016 (2016 - 05 - 15) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> September 25, 2016 (2016 - 09 - 25) </Td> <Td> May 7, 2017 (2017 - 05 - 07) </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 18 </Td> <Td_colspan="1"> October 1, 2017 (2017 - 10 - 01) </Td> <Td> May 6, 2018 (2018 - 05 - 06) </Td> </Tr> </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"> March 1, 2015 (2015 - 03 - 01) </Td> <Td> May 3, 2015 (2015 - 05 - 03) </Td> </Tr>

When does the last man on earth air