The Secret World Chronicle is a braided novel series set firmly in the realm of superhero science fiction. Written by authors Mercedes Lackey, Dennis Lee, Cody Martin, and Veronica Giguere, the Secret World Chronicle carries a diverse cast of characters in their quest to save the world from the threat of the Thulians.
Starts here with season one
http://secretworldchronicle.com/podcast/book-one-invasion/ and we are currently in our 6th season, plus Tales of the Secret World War (WWII).
Emerging mysteriously during World War II, metahumans became icons of the best - and worst - humanity had to offer. Yet sixty years later, the world still suffers from war, greed and madness. Worse, man's nadir of systematic cruelty returns with bizarre new weapons. The metahumans of Earth must find a way to defeat this powerful foe and discover what lurks behind the scenes - a secret world hidden from our own. Mercedes Lackey, one of fantasy's most beloved voices, and new talent Steve Libbey bring you a podcast series that catapults the classic superhero into the 21st century.
Book One: Invasion starts the series off with a bang - a set of coordinated attacks by Nazi warriors in futuristic battle armor. We meet our cast of heroes in the midst of chaos: Belladonna Blue, a young azure-skinned healer; Victoria Victrix Nagy, a geomancer fighting panic attacks; Handsome Devil, whose luck is metahumanly good; Red Saviour, strident leader of an anachronistic Soviet team; Red Djinni, the shapeshifting criminal; and John Murdock, a fugitive super-soldier. Watching over them all is the Seraphym, descended from the Infinite to protect humanity.
As the heroes fend off the blitzkrieg attack, they are left wondering what secrets have erupted from this hidden world, and whether, once unleashed, they can be contained. For there are clues that all is not what it seems...