Jenny and Tim's model plane starts to behave strangely.
Jenny and Tim's search for their model plane leads them to an Indian scientist's house.
Ram and Mr Turner show the children their computer, and Ram promises to fix their plane.
Ram's evil brother Ravi sends his henchman, Number Two, to steal Ram's firing programme.
Unaware that Ram has been kidnapped, Jenny and Tim come to collect their plane.
Mr Turner and the children find the half-finished message that Ram left on the computer.
Ravi reveals his plan to use the rain-gun to flood the Fens.
Ram sends a message to the children using the model plane's remote control unit.
Tim creates a diversion to distract Ravi's henchman.
Jenny has a novel idea that may prevent Ravi from carrying out his plan.