Lisa joins up with a militant environmental group called Dirt First and wages war on corporate polluters. Finally, Lisa has a found a cause worth fighting for. Also, Jesse, the leader of Dirt First, is a totally cute non-threatening teenage boy. Feeling challenged by Jesse's intense beliefs and cute hair, Lisa decides to camp out in an ancient redwood tree to stop deforestation. Lisa prevents the loggers from destroying the tree. But when she sneaks down for one night, the tree is struck by lightning, making Lisa a martyr for Dirt First. Lisa has to decide what's more important: being a symbol for the environmental movement or being honest.