Max Allan, a visionary engineer persuades investors to fund building an undersea railway connecting France to the United States. But there are powerful forces who wants to stop his futuristic dream.

Relations between Huckebein, a humble tailor, and Greizinger, a wealthy farmer, become strained after Greizinger breaks off the romance between his son, Franzl, and Huckenbein's daughter, Evi. However, after a situation with a 100 mark note taken from a pair of trousers pressed by Huckebein belonging to Greisinger is resolved, a valuable mineral spring is found on the tailor's property,and the warring fathers become friends and Evi and Franzl are married.