During the troubled times of the Republic of China, Marshal Ye Ting inherited the Morse code inheritance of his father's dark night organization, and received a secret order to sneak into a Japanese commercial bank as an undercover agent. In a twist of fate, he reunited with his long-lost childhood sweetheart Suman, who had transformed into an enemy translator. An old love is rekindled in the electronic deciphering; Suman possesses a Moss ring that is the same as Ye Ting's father's relic, which leads to a golden treasure code related to the fate of the country; Ye Ting is betrayed by an insider, his actions are exposed and forced to flee, but he saves his father but finds that he is imprisoned in Headquarters, he was forced to decipher the ancient Mosaic Atlas; his father committed suicide by taking poison to protect the secret, and told him before his death that the code could only be cracked through telepathy between two people, and Suman was the other half of the descendant; Ye Ting and Suman broke up and joined forces, but they encountered a gold mine when they found it. The traitorous adjutant betrayed him, and Suman was shot and fell into coma during the fierce battle. Ye Ting broke into the enemy camp alone and set up a trap to kill the adjutant. The code map was destroyed and the whereabouts of the gold became a mystery. In the end, Ye Ting gave up his position and took Suman into seclusion. The Dark Night Organization left a secret code to hint that the grudges were unresolved.
