Action Comics, Vol. 1

A miner is trapped in a cave-in, and Superman disguises himself as one of the miners to rescue him. In the process, he learns that the mine has been unsafe for months, but the cheap owner won't upgrade the safety measures. Finding this entirely unacceptable, Superman crashes a party, and the owner decides to move the party into the mine for something different. Superman causes a cave-in, which results in a life lesson for the upper class, who soon change their tune when it comes to representing the miners.