From IMDB:

A troubled veteran from the war in Afghanistan works to protect an orphaned teenager who witnessed a murder from the killer’s henchmen.

My German son-in-law Thomas played his European version DVD
of this German film (with English or German subtitles) for me when we visited Thomas and daughter Kate in London. Amazon sells both a Blu-ray and DVD version, BUT I am not sure these versions can be played in the USA.

Til Schweiger is a famous German movie star whom you may recognize as Sgt. Hugo Stiglitz in “Inglourious Basterds” from 2009. In Schutzengel (which means “guardian angel”) he is a brooding action figure that is seemingly invincible. Against a dozen armed assassins he never seems to miss a shot. In this film his daughter Luna Schweiger plays a young orphan.

Good guy versus a bunch of bad guys makes for some fun action.