INFINITE is taking on Won Bin with their new 'Man From Nowhere' concept for their comeback song "Back," as they fight gangsters in a worn down warehouse to save a young, kidnapped girl.  Now that explains all the scratches on their handsome faces from the first teaser!

SEE ALSO: INFINITE promise to 'Be Back' with MV teaser

No worries, fans, no INFINITE members were harmed in the making of this production.  Check out their smooth dance moves and the dramatic music in the teaser above!