What's the 'harm' in letting her leave early? = I don't see any 'harm' in letting her leave early. = There's no 'harm' in letting her leave early. [=letting her leave early will not hurt anyone or cause a bad result]
I want to be sure that no 'harm' will come to her. = I want to be sure that she won't come to any 'harm'. [=that she won't be hurt in any way]
He claims that he didn't mean any 'harm'. [=that he didn't mean to hurt or bother anyone]
(..) - l'm sorry l couldn't stop... - l'm the one who should be sorry. l was so ready to get out, so ready to taste that ocean, l was willing to put you in harm's way to get there. Nothing should be worth that. l'm sorry l couldn't get you back to your father, kid. All right. What the...? (..)2003 Finding Nemo