Four teenage urban explorers must walk six miles through the dangerous ruins of Detroit to reach a pay phone after getting robbed in the city’s abandoned underbelly.

Thanks for the comments!

Thanks for the comments, everyone.

The only criticism I have is the use of the word - underbelly. Usually, that is to describe more about the bad side of society rather than an actual place so could it be...

Four teenage urban explorers must walk six miles through the dangerous ruins of Detroit to reach a pay phone after getting robbed in the city's former red light district.

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Agree with the previous posts but wanted to say I really enjoyed reading this logline. I could sense a full story in this idea.

Shades of 'The Warriors' (in a good way)

I think this is a pretty good idea. However, I think it needs one main character to be the focus and she/he should have a flaw to overcome. Maybe he or she could be leading his/her friends out of the city and he/she has never had to be a leader before. Also, the inciting incident - getting robbed in the city's abandoned underbelly - should go first and there should be greater stakes in the overall logline. This is just an example but something alone the lines like this:

Getting robbed in the city's abandoned underbelly, a timid high school student must lead his three friends through the dangerous ruins of Detroit before they are discovered by rivaling gangs.