Enemy of my Enemies

"Enemy of my Enemies"Backstrom Season 1 Episode 4 S1E4 Enemy of My Enemies - OVGuide is the seventh episode of the of . 
==Synopsis==
An explosion on the Liberty Oil pipeline in Backstrom's childhood home of Cooch County leads his estranged father, Sheriff Blue Backstrom, to Portland. Father and son, along with the Special Crimes Unit (S.C.U.), race to find the suspected eco-terrorist, before he/she strikes again. Meanwhile, Backstrom must confront old demons when dealing with his revered father, and romances are stirred when ex-fiancée Amy pays Backstrom a late-night visit.Backstrom Preview - IGN
==References==