Alexander Skarsgård is Tarzan and Harley Quinn is Jane.
Tarzan has been domesticated and lives in London. The Belgian king needs Tarzan back in the Congo to pay off some vengeful natives. They'll give the king some legendary diamonds in exchange for the opportunity to kill Tarzan.
Flashbacks tell the origin of Tarzan and they're miles more interesting than the rest of the story.
Samuel L. Jackson is in the movie too because why not?
The Legend of Tarzan
The Legend of Tarzan
“Activism is a way for useless people to feel important, even if the consequences of their activism are counterproductive for those they claim to be helping and damaging to the fabric of society as a whole.” - Dr Thomas Sowell