As you are walking towards the bus stop, you spot something in the distance. You stop to study it for a moment and see that it looks like a floating acorn. You look around to see if anyone else has spotted it; the sound of the bus screeching to a halt lets you know that the bus driver has seen it to. You watch as the object lands on the ground. It is about ten feet tall and as large as the bus. A hatch opens and several figures step out of the giant acorn shaped transport. You squint to see them; they are giant squirrels. They stand as tall as an average size human and are each carrying what look like cattle prods. You quickly dive out of sight behind some bushes as they start to look around, making sounds that seem to be communications between them. You watch from your hiding spot as the creatures move to the bus. The bus driver steps out as the creatures get within feet of him. The bus driver says something, but one of the squirrels suddenly lets out a cry and sticks the man with the weapon in its paws. The man falls back against the bus and screams as his body starts to contort and change. He falls to a knee as brown fur starts to cover his body. A large, fluffy tail bursts from his pants as he grows a muzzle and his ears shift to the top of his head. Within a minute, he looks like a smaller version of one of the creatures. One of the squirrel monsters says something, and the former bus driver answers and then scrambles onto the bus. As you watch from hiding, the people on the bus try to get away, but as each one is either scratched or bitten by the fromer bus driver, they to start to shift and change until there is a bus load of alien squirrel monsters. You must act fast, or all of humanity will fall to these evil alien monsters.