You have multiple commits in a branch but all gone wrong somehow and now you want to revert back to a specific commit. This is how you do:
Situation 1: Reverting to older commit
Danger Alert: All your uncommitted changes will be lost doing this. If you have such, prefer next situation.
git reset --hard <commit_code> git commit -m "Reverted to <commit_code>"
<commit_code> with your commit SHA Eg.