I have no idea of the backstory to this video, but Dude 1 is talking on a cellphone when Dude 2 charges him with a baseball bat. Dude 1 has some very effective moves.
Nice chokehold. Dude 2 was out cold. I suspect Dude 1 had done this (or something like this) before.
(Dude 2 is also fortunate he didn't try that on someone carrying a gun. Under those circumstances, a baseball bat is a potentially lethal weapon any way you look at it, so such an attack would have justified a rather stronger response, IMHO.)