Question: how many episodes in season 11 of heartland
Answer: Season Episodes Originally aired First aired Last aired 13 October 14 , 2007 ( 2007 - 10 - 14 ) February 24 , 2008 ( 2008 - 02 - 24 ) 18 October 5 , 2008 ( 2008 - 10 - 05 ) March 22 , 2009 ( 2009 - 03 - 22 ) 18 October 4 , 2009 ( 2009 - 10 - 04 ) March 28 , 2010 ( 2010 - 03 - 28 ) 18 September 26 , 2010 ( 2010 - 09 - 26 ) March 27 , 2011 ( 2011 - 03 - 27 ) Film December 12 , 2010 ( 2010 - 12 - 12 ) 5 18 September 18 , 2011 ( 2011 - 09 - 18 ) March 25 , 2012 ( 2012 - 03 - 25 ) 6 18 September 16 , 2012 ( 2012 - 09 - 16 ) April 7 , 2013 ( 2013 - 04 - 07 ) 7 18 October 6 , 2013 ( 2013 - 10 - 06 ) April 13 , 2014 ( 2014 - 04 - 13 ) 8 18 September 28 , 2014 ( 2014 - 09 - 28 ) March 29 , 2015 ( 2015 - 03 - 29 ) 9 18 October 4 , 2015 ( 2015 - 10 - 04 ) March 20 , 2016 ( 2016 - 03 - 20 ) 10 18 October 2 , 2016 ( 2016 - 10 - 02 ) March 26 , 2017 ( 20