The Treasure Thief

There's a very unique family that travels the world.
Who is this family and what makes them so unique you ask?
Well, the whole Robertson family has super powers. Steven - the father - has Electric powers. He can charge a light bulb by simply holding it in his hand! Alice - the mother - has Shrinking powers. At will, she can shrink to as small as 3 inches tall! And she's also an amateur scientist on the side lines. Kida, their 20-year-old daughter, has the ability to run extremely fast and can turn invisible at will. Rodger, their 15-year-old son, is very strong. He can pick up a car easily. They've offered their services to all. Doing what's right and bringing justice to those who oppose the law. They leave their home every few months and travel from place to place, assisting lawmen all over the world.
This story takes place in Nassau, Bahamas. After being there for a couple months, the Robertson family has finally finished their task and are ready to go back home and see their family again. The day before they were planned to leave, however, brought about a new task. A man, known by the name of J.M. Rack, attacked and began to steal priceless artifacts from the Nassau Historic Museum.
And thus, our story begins...

This is my own original story!