Lin Xuan, a bankrupt fast-food shop owner, unexpectedly discovers that his cold storage door can connect to the ancient Daqian Dynasty, which has been suffering from a severe drought for three years and where the people cannot make a living. The pre-made dishes and instant noodles despised in modern times have unexpectedly become supreme immortal food in the disaster-stricken world. He exchanges cheap carbohydrate supplies for rare antiques, gathers refugees to form a food protection team, and shocks the imperial court with self-heating delicacies. Faced with the invasion of 100,000 barbarian cavalry, Lin Xuan brings in modern industrial equipment such as tractors and compound crossbows to repel the foreign enemies. Just as he is showing off his skills, a mysterious system suddenly appears!