Samuhinso

Hey everyone! New to the club. New to a Jeep Comanche all together, so much help is needed. Got the truck yesterday and I am concerned about the brakes. They are fairly easy to press, but I have to press down 3-5 inches in order for the brakes to start braking. Don't think this is normal, so what could the issue be? And what will be needed to fix the issue? Thanks!