Three aging police officers working in support positions are drawn back to front line operations when their best friend, Xia, is killed on the day of his retirement after asking to tag along... Read allThree aging police officers working in support positions are drawn back to front line operations when their best friend, Xia, is killed on the day of his retirement after asking to tag along on one last drug raid.Three aging police officers working in support positions are drawn back to front line operations when their best friend, Xia, is killed on the day of his retirement after asking to tag along on one last drug raid.