When they were in the science lab, they tested out the bottle rocket which is what made the mess. Olivia grabbed a stopper and Zack used his basketball and bicycle needle pump to pump more air in the bottle. When it was ready to go it blasted off.
They tried it three times and then Zack jumped on the pump with all his might and it blasted off higher than ever!
They were running out of time to stop the Erdean invasion. They kept trying to launch the ship but they never made it.
Then Amp said his calculations were wrong! They actually had 119 days. Zack was very proud that he launched a rocket even though it didn't work, he was glad he did it.
Later on at the dinner table Zack's family had a talk and he thought he was going to be the topic but it was Zack's brother Taylor and the mess at the science lab. Then Zack shocks his family by his intelligence on the elements. He asked them where he could find tungsten and neodymium. Zack kept the alien a secret but plans to help him.