The DEA recruits a group of straght-A model students to help infiltrate a thriving, Pot-dealing business in their high school, not knowing that one of them is the head of the operation, and is using the insider information he has obtained to dodge the police's every move.

Since the DEA agent is one of the main characters I wouldn't start with "The DEA recruits..." Instead I would start with, "An (adjective) DEA agent recruits."

You should mention him in your logline and give him an adjective to describe him. Is he gruff? hardworking? corrupt? Loyal? Aggressive?

The DEA are simply using the students as eyes and ears on the inside, I didn't see it as them carry guns and badges, just helping out. And also, I do see it as a sort of "21 jump street" meets "Breaking Bad"

The student running the operation and the head DEA agent are the two main characters, and foil characters of each other. And until the end, it's up to the viewer to decide which side they are rooting for. Even though the DEA agent is doing what is "right," we grow close to the student and once we understand his motive, some may consider him the "good guy"

Hmm. Sounds like a dramatized version of 21 Jump Street.

What Richiev said - who is the protag? The DEA agent or one of the students?

And I could be wrong, but I don't think a government agency is allowed to recruit underage civilians to work their cases.

"The DEA recruits a group of model students to infiltrate a thriving pot business in their high school not knowing one of them is the head of the operation." Enuff said.

This doesn't really give us much. it lets us know a small sample of the story but as Richiev has mentioned you haven't even mentioned the main character. You should be looking to say

'Straight A student (name) is recruited by the DEA to infiltrate a pot-business within the school. As (name) and his crew dig into their assignment the DEA realise that they are tracking someone much cleverer than them who continues to remain doing business.'

This is a pretty lame attempt but kind of gets across the sort of areas you need to be looking at. I don't know if you should announce that the leader is the kingpin and let that be a small twist when people see the film.

The way to get round that is to have the DEA agent as the lead character and he employs a group of high school kids to infiltrate the gang little knowing he has hired the drug kingpin himself.

It depends what angle you are playing the story out from but hopefully this helps you.

Who is the lead character?