It is summer holidays time - time for adventures of Phineas and Ferb! This time our heroes accidentally got into past because of Dr. Heinz Doofenshmirtz experiments. They need to make a time machine from different details in order to get back home. It is not that easy to do this, they will need to travel around the world: Egypt, Rome, Ancient Greece, Europe and China. They will need to visit all these places to find the needed elements to make time machine. Ferb is going to make the machine and he will give a list of needed details to Phineas. And Phineas will collect components they need.