A character saves another/others from harm and is killed, crippled, or maimed as a result.

A bad character who was once good can redeem themselves in the last act by Taking the Bullet that was meant for The Hero, thus expunging all their previous evil, avoiding forcing The Hero to arrest or confront him, and avoiding any real-life penalties like disgrace and jail. This is like Redemption Equals Death. In this case, the death and redemption come in a single act.

There are essentially three kinds of Heroic Sacrifice:

• The one at the beginning of the story, which sets the tone for the rest of the tale.
• The one in the middle of the story, wherein the Heroic Sacrifice leads to new heights of badassery, or new depths of depression, in the characters who are affected by it (depending on the story.) Sometimes both.
• The one at the end of the story which serves as a Grand Finale, an example of "This character is Too Cool to Live", or the kernel of a Downer Ending or Bittersweet Ending. The "Too Cool to Live" Heroic Sacrifice is the most common type in American movies. Often, The Hero Dies in a heroic sacrifice at the end.

A Heroic Sacrifice usually requires that a character be Not Afraid to Die, even declaring It Has Been an Honor. If the Heroic Sacrifice was pre-planned, it's a Self-Sacrifice Scheme. Often preceded with a Sneaky Departure from the team, or a More Hero than Thou dispute. A Friend in Need often requires it, and doing it proves your love for them. Contrast Villain's Dying Grace, when a dying villain decides to save a life. The Doomed Moral Victor fights a battle where the outcome is clear from the beginning. If the character has time to say some last words before dying, they often do so in an Obi-Wan Moment. Often a Dying Moment of Awesome. There's also the case where Someone Has to Die, which takes this to its logical extreme.

Characters who Draw Aggro may not expect to live, and thus it will also be this trope.

This is a Super-Trope, and the Sub Tropes are listed under Heroic Sacrifices.

Compare and contrast Zero-Approval Gambit (where the hero sacrifices his good name instead of his life), Sacrificial Revival Spell (where the character uses a spell to save another), Deadly Upgrade (in which a character gains immense power for a short time before dying) Death Is the Only Option, My Death Is Just the Beginning, Inspirational Martyr (who may not be that heroic, but their deaths may inspire others to become heroes), Taking You with Me, Senseless Sacrifice, Heroic Suicide, Suicide Mission, and Stupid Sacrifice.

As this is a Death Trope, unmarked spoilers abound. Beware.

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