Dr. Steven Sorenson plans to tap the geothermal energy of the Earth's interior by means of a thermonuclear device detonated deep within the Earth. Despite dire warnings by fellow scientist Ted Rampian, Dr Sorenson proceeds with the experiment after secretly learning that he is terminally ill. This experiment causes a crack to form and grow within the earth's crust, which threatens to split the earth in two if it is not stopped in time.两个人并肩走进这座大厦，正不巧这会儿居然停电。电梯用不了，两个人只得走楼梯。她身体还很虚弱，走了一会儿便气喘吁吁。安静而略显昏暗的楼道里，她的呼吸异常明晰。燕北满足于这样的空间，只有两个人在，他可以安慰自己，她的世界里……还有他……