描述: [Zhangamiddleagedmanstrugglingwithadeadendjobasaninsurancesalesperson,onthevergeofdivorcewithhiswife,losingcustodyofherdaughterandontopofallthishehadtotakecareofhisfatherwho'ssufferingAlzheimer's.UnknowinglyZhangwasinvitedtojoinanundergroundfightinggameforfinancialpurposesbuteventuallyZhangbecomeshookedonthefights...]