An eight part children's thriller involving stolen jewels and BMX bike riders.
With the help of her brother, and new friends as diverse as a computer whizz-kid and a BMX stunt rider, Sandra must somehow outwit a ruthless motorbike phantom.
The Eigenmann clan worked together in a weekly series Cebu, which aired on RPN-9 in 1991. In the series, Cherie played Gemma dela Rosa while Mark played her older brother Mike. The Dela Rosa family is the most powerful clan in Cebu.