if the dodgers lose today are they out

The Dodgers are currently in the National League Division Series (NLDS) against the Philadelphia Phillies and lead the series 2-1. If the Dodgers lose today (Game 4), they are not out yet, but it would force a decisive Game 5 back in Philadelphia. Winning Game 5 is required for the Dodgers to advance; otherwise, they would be eliminated. So, a loss today does not mean the Dodgers are out, but it puts them in a must-win situation for the next game.