This is Paracinema 
His last mission was a trip...

in 1962 while attempting to smuggle biological weapons experiments, stolen gold and art on a German cruise ship sailing to Argentina, a Nazi scientist and two SS Officers are killed in a shootout with Romanian Intelligence agents. The experiments, gold and art are never found. It’s now 2009 and a washed up burned out soon to be retired spy is asked to go on one last mission to investigate taking him on a life changing psychological journey.