Caughnawaga (Kahnawake). LS of boy floating on inner tube as bow and hull of a huge freighter moves into frame. Cut to stern of freighter as Kanien'kéhaka (Mohawk) boys dive into water. Shots of sand lot lacrosse game between young boys, of various plays, of fight between couple of boys. HASs of two boys diving into canal from side. MLS of canal, boys diving into water, Mercier Bridge in background.