本集主要内容： 攻坚号令，就是军令状，必须排除万难去争取胜利！机动作战、立体攻防，是习主席对陆军提出的明确要求，为陆军部队前行指明了方向。向着如期实现建军一百年奋斗目标加速冲刺，是事关全局、务期必成、不容有失的硬任务。 （《攻坚 ...

In the 1980s, oil billionaire Jack Grimm provides funds to support the latest sonar and camera technology to find the Titanic. Grimm thinks he has found part of the propeller, but has he?