《越狱》第四季他的剧情承接了第三部展开了惊心动魄的复仇行动，主要讲述了Michael Scofield从地狱般的索纳监狱逃出来后，展开了一系列的复仇行动。

麦克（文特沃斯•米勒 Wentworth Miller 饰）为了帮莎拉顶罪进入了巴拿马最凶险的监狱——SONA，这里专门关押一些重刑犯。因为这里几年前囚犯们发生了暴乱，当地的军队已经完全撤出，剩下这里的犯人自生自灭。这时，林肯（多米尼克•珀塞尔 Dominic Purcell 饰）的儿子LJ和莎拉被Company的人绑架了，他们要求麦克帮助他们完成一项任务，那就是在一周内将在SONA里的澳大利亚人找到并救出来。为了心爱的女人和侄子LJ，麦克和在外面活动的林肯又开始了他们新一轮的越狱计划！

Lincoln Burrows is currently on death row and scheduled to die in a few months for an assassination his younger brother Michael is convinced he did not commit. With no other options and time winding down, Michael takes drastic measures to get himself incarcerated alongside his brother in Fox River State Penitentiary. Once he's inside, Michael, a structural engineer with the blueprints for the prison, begins to execute an elaborate plan to break Lincoln out and prove him innocent.

In season two, Michael, Lincoln and six other inmates, including pickpocket Tweener and the mentally unstable Haywire, have ultimately escaped from Fox River. Once outside the prison walls, however, the escape truly begins as the convicts race for their lives while trying to avoid capture by the authorities. The pursuers are led by FBI agent Alexander Mahone, who is haunted by his own demons; vengeful prison guard Captain Brad Bellick, who, driven by his own personal vendetta, will also stop at nothing until the escapees are captured or killed; and Secret Service Agent Paul Kellerman, who, under President Reynolds' orders, will do anything to keep the truth about the conspiracy very much a secret.