Through the 10 episodes of the first season of Twisted Metal, the backstories of several characters were explored. All of them were sad, and some absolutely heartbreaking. In some cases, viewers got to see pivotal events in dramatic detail that led to the current state of mind of each of the main or supporting characters.
Source：https://www.cbr.com/all-the-twisted-metal-backstories-ranked-by-which-is-saddest/
