What happens when a baseball manager gets thrown out of the game by the umpire?

I was watching a baseball game on television. (I won't say what team) And, the manager came out of the dugout to talk to one of the umpires about a call that he didn't agree with and the umpire threw him out of the game. What happens when he is thrown out of the game? Where does he go and does he get to come back later in the game?