Today we continue our look at each of the founding MCU Avengers and how their stories have led them to their final confrontation with Thanos. Next up is elite super-spy Black Widow and her journey to Avengers: Endgame. Marvel fans are bracing themselves for some major deaths in Avengers: Endgame. Though Earth's Mightiest Heroes will surely triumph over Thanos in the end, it's all but a given that some of these characters will die in the process.