U.S. Border Patrol Agent, Angel Waters, makes a routine apprehension that will haunt him forever.

　　Upper-middle class teen brothers and their newly-met stepsister take a road trip to the Mexico-U.S. border in a tense revenge journey to track down the man responsible for the accident that caused their father's death.

露絲一家是墨西哥的移民，家境清寒的她與哥哥約定他們要一起進入名校德州大學。哥哥為了夢想，只能冒著生命危險加入徵兵制到阿富汗從軍。露絲也滿心以為只要能獲得德州女子舉重冠軍就能得到德州大學的獎學金。就在決賽關鍵的前三周，求勝心切的她竟然接受藥物注射，意外失去了參賽資格，情緒失控之下，露絲竟成了縱火犯進入少年感化院。生命中種種的意外，讓她逐漸瞭解生命並非別無選擇，憑藉著對舉重充滿熱情，她仍能在每次人生旅程的轉彎中，努力迎向不同的未來…