A dc animated movie?

When I was a kid I watched a a marvel movie it was animated and it was contained batman meeting the Marian man hunter for the first time. I remeber they went to a back alley diner and manhunt we and Wayne were talking about this race of alien that wiped out his people and he escaped along the lines of it. The aliens were invading earth and replacing important people and the justice league banded together to stop it. I remeber in the end that they found a nest and the they were saving the people but one of the heroes got trapped and almost dies. It was about 2004 or something cause I was younger and the animation wasn't that good quality.