Grandpa Clumsy is in trouble again. This time after bringing a butterfly back to the present, he has inadvertently changed history in a drastic way.
One change a million years ago can do a lot of damage to everything that follows. Help Helen correct dozens of mankind's greatest inventions that would never have been if it wasn't for a butterfly flapping its wings.

• Build 30 of the world's greatest inventions
• Broken hidden object gameplay
• 5 invention minigames