Modern explorer Shen Wan crosses over to become the legitimate daughter of the left prime minister of the Daqian Dynasty, whose family is ransacked and sent into exile. On the third day of her new marriage, she embarks on a three-thousand-li exile road with the disabled Prince Xiao Jingheng. At a critical moment, she activates the Doomsday Fortress All-Power RV System, disguising a heavy-duty off-road RV as a dilapidated carriage. Relying on its bulletproof body, constant temperature air conditioning, modern medical care, and weapons cache, she carves out a path to survival in a desperate situation. On the exile road, using divine treasures such as high-voltage stun batons and drones for dimensionality reduction strikes, Shen Wan successively defuses official oppression, heavy rain and mudslides, wolf pack night raids, black forest miasma poison, bandit sieges, and multiple batches of assassins sent by the emperor.