Root and Berry Retreat is a camp that Mr. Henning assigns kids to go if they get a poor grade in Science. It is an overnight camping trip for those who need extra credit in his class. It was mentioned in the episode iGo Nuclear. It's optional, although most kids who needed it attended in order to make up for their low grade on their "Green Week Project". Carly, Freddie, and Gibby were known to have gone on the trip because of their low grades during that episode. Sam didn't go because she received an A in the project. It is shown that all of the kids think it is lame and boring. At the end, it is also shown that Freddie and Carly offer each other a root and a berry while seeming depressed.