Simplify the following text for a Grade 14 native English-speaking person.
Original: These characters fight criminals and schemers , Alliance security forces , the utterly psychotic and brutal Reavers , and the mysterious men with `` hands of blue '' â '' who are apparently operatives of a secret agency which is part of the mega-corporation referred to in the DVD commentary only as The Blue Sun Corporation .
Simplified: These characters fight criminals , Alliance security forces , the insane Reavers , and the mysterious men with `` hands of blue '' - who seem to work for a secret agency which is part of the huge corporation , The Blue Sun Corporation .