Penny has a problem! She invited 20 people to come to a birthday pizza party and needs to pick up the pizza before they get to her house. Unfortunately, she's locked her keys in her car. There is a spare set of keys locked in the safe at their house, but her husband set up some puzzles and codes that have to be solved in order to open the safe. Help Penny unlock the safe so she can get the car keys and get the pizza before her guests arrive.