Survival in The Walking Dead franchise often requires unexpected acts of heroism and sacrifice. Characters like Virgil, Jesus, Bob, Nicholas, Sasha, Jim, Charlie, and Negan have all played pivotal roles in saving others or furthering the plot. 

From Alicia showing Charlie a beach to reunite the group to Negan going undercover to take down the Whisperers, these actions have helped bring positive change, even in the midst of disastrous situations. These moments of heroism often serve to develop the characters' arcs and move the narrative forward.