S02:E03 - Tourist Season

In an attempt to generate electricity, Professor Challenger constructs a windmill. But when a storm causes a ball of lighting to strike the generator, a mysterious opening emerges in the sky. A helicopter appears overhead and crash lands nearby, including the onboard survivors--a family of tourists from the 21st century. While the adventurers take in these new guests and contemplate the possibility of time travel, Marguerite and a hostile tribe both vie to make the helicopter their own.