我们来了第四季完整版

During the Cold War, a scientific team refits a Japanese submarine and hires an ex-Navy officer to find a secret Chinese atomic island base and prevent a Communist plot against America that could trigger WW3.。越城顾家嫡长女叶阑珊痴恋程鹤年三年，却发现他心属妹妹叶可人。心死之际，她决然代妹嫁予少帅长子程望书。程鹤年醒悟追悔，抢亲囚禁却难挽芳心。当见她宁为程望书舍命，他终选择放手成全。。