Season Episodes Originally aired First aired Last aired 10 June 22 , 2014 ( 2014 - 06 - 22 ) August 24 , 2014 ( 2014 - 08 - 24 ) 13 June 21 , 2015 ( 2015 - 06 - 21 ) September 6 , 2015 ( 2015 - 09 - 06 ) 13 May 30 , 2016 ( 2016 - 05 - 30 ) September 11 , 2016 ( 2016 - 09 - 11 ) 10 August 20 , 2017 ( 2017 - 08 - 20 ) October 8 , 2017 ( 2017 - 10 - 08 )

Question: how many episodes in season 4 of last ship
Answer: 10