An ailing veteran cop whose relentless determination to do away with an untouchable gangster has led him to employ a series of unethical tactics finds his investigation complicated by the arrival of principled new inspector and the death of a fellow cop in this explosive underworld tale from Skyline Cruisers director Wilson Yip. His health rapidly failing and his dreams of putting away the man responsible for the death of his goddaughter quickly evaporating, Detective Chan (
Simon Yam) begins planting false evidence and tampering with video in hopes of making a charge against Teflon-coated crime boss Po (
Sammo Hung) stick. As Detective Chan begins to loosen his grip on those unfulfilled dreams to retire and make way for honest incoming Inspector Ma (
Donnie Yen), the ongoing investigation hits a snag when an undercover cop who has infiltrated Po's gang is mysteriously killed. ~ Jason Buchanan, All Movie Guide