Greek myths don't always have positive messages, but this one encourages people to never give up, to have hope that there's a way out of unthinkably awful situations, and to make your time with those you love count.
Mostly stylized violence like in the movie 300 with slow-motion war shots that then speed up. Lots of sword-on-sword violence but also Gladiator like arena fighting. High body count: men mostly die in battle usually from being stabbed. A man kills his wife with a dagger but makes it look like a suicide. Hercules wields the power of lightning in his sword. Men are shown hanging and speared.
One love scene between Hercules and Hebe that starts with kissing and then cuts to them discreetly under a sheet, but still caressing and kissing. In one scene, a woman moans as she is impregnated by an invisible Zeus. The king is shown touching two different women whom he ushers into his bedchambers.
Some insults about Hercules' parentage ("bastard" for example) and his standing as a "second son."