跳跃、冲刺、翻越障碍，人与犬在每一次全力奔赴中交换信任！《加油！汪汪》六位明星队长卸下光环，和毛孩子并肩站上赛场；来自全国海选的汪汪搭档们破界集结，一起用奔跑撕开障碍，用跳跃突破极限。看人宠并肩、为彼此而战的每一个高燃瞬间。
The fourth season of America's Got Talent, an American television reality show talent competition, premiered on the NBC network on June 23, 2009. Country singer Kevin Skinner was named the winner on September 16, 2009. This season is the first season to be broadcast in high definition.
俊男美女被困“地狱岛”，逃离方法只有一个：每晚与某人成为情侣。配对成功的人当晚可搬去“天堂岛”，享受优质食物和住宿，而未找到伴的人，晚上得在“地狱岛”自力更生。
