影音先锋After the death of his son，a Sargent Major IN the Colmar police department，Dr.étienne Ronsard steps IN to look after a grandson he hardly knows. It had been years sinceétienne last saw his estranged son，who's being painted as a drug addict who lost control of his car and killed his partner along with himself.étienne was never happy with the life his son chose，but he doesn't believe for a second that his son turned bad. He's determined to give his grandson a better memory of his father，so he sets out to prove that Sargent Major Gilles Ronsardwas an upstanding cop and man影音先锋