Dejah Thoris chases a bad guy, and unmasks him to find out he's "Moon Pirate". The pirate distracts Dejah by biting her hand, and a big net is thrown over her. The pirate then gets on top of her and sprays sleeping gas in her face.
Dejah is then shown passing out from the gas.
She wakes up chained to a pole, held captive on a moon pirate ship.
Great scene all around!