From Action Comics #10 (March 1939). Written by Jerry Siegel; drawn by Joe Shuster.
Another undercover adventure for Superman, this time to a prison chain gang that’s being inhumanely run by a corrupt warden. Interestingly, Clark Kent learns about this from an escapee, but betrays the escapee’s trust – while also earning the disgust of Lois and all the other newspaper staff – by turning in his source. In the end, it’s an act of heroism on his part – willing to be hated because he thinks turning in the escapee is the best way to prove what’s going on at the prison – but it goes to show that though Superman always does what he thinks is right, that doesn’t mean that he always is.