每周,约翰·沃尔什都会带领观众观看那些迫切需要查封的尚未解决的暴力犯罪案件——时间是关键,利用《身份证》积极参与的观众的力量可以将这些罪犯绳之以法。约翰的儿子卡拉汉·沃尔什(Callahan Walsh)与约翰一起参与了每一集,他领导着实地行动,与社区和地方当局合作寻找感兴趣的人。与国家失踪和受剥削儿童中心(NCMEC)合作,《追捕约翰·沃尔什》(In Pursuit with John Walsh)还将每小时拍摄两名失踪儿童,提供年龄进展照片和描述,希望观众能够提供他们下落的新线索。Victims' rights activist John Walsh and his son, Callahan, showcase time-sensitive, unsolved cases in desperate need of attention, mobilizing the public to engage in the pursuit of justice.