When Superpowered Nelly discovers that her mother is not really death, but a lie implanted in her head, she goes on a crazy journey to discover the truth, but her evil father has other plans for her.

There’s no need for the character’s name in a logline, instead, let the descriptions introduce her.

Do you mean ‘dead’ instead of “…death…”?

Writing “…goes on a crazy journey…” doesn’t enlighten the reader. In a way, all heroes go on crazy journies, what about this one makes the experience different and original?

Much in the same way, her evil father and his plans are vague descriptions. Describe what it is that makes him and or his plans evil.

My point is, you need to describe specific details that illustrate a journey that’s unique to your character.

Check out the ‘Formula’ tab on the top bar for more detailed information about loglines.