HP Middle School Lockin Our annual Lock In is always a BLAST, and if you are a middle school student you do NOT want to miss it! It will be held at Just Jump October 16-17 from 10pm-6am Dinner will be provided, you will want to bring $10-$20 in cash for snacks throughout the night from the concessions stand. Pick up is at Just Jump at 6am on October 17th. Cost: $30