Complex sentence: Season 14 of "Mayday" was announced by Cineflix in September 2013 and entered production on 13 January 2014 and finished production on 25 July 2014.
Split into simpler sentences: Season 14 of "Mayday" was announced by Cineflix in September 2013 and entered production on 13 January 2014. Production began on 13 January 2014 and was completed on 25 July 2014.