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Season 1 - Sep. 20, 2011
Season 2 - Jul. 28, 2013
Season 3 - Jun. 29, 2014
Season 4 - Nov. 27, 2015

Unforgettable Season 1 Episode 15
HD
Overview:
When a key witness in his murder case vanishes before testifying, Al scrambles to find her before the suspect walks free.