The starting point for this mini-sitcom episode is that Nathan Fillion and Tim Daly have both provided voices for animated DC superheroes. The ending point is… best discovered for yourself.
You may not have recognised the music that plays right at the start. Check out this jingle from The Adam & Joe Radio Show, the lamented BBC
6 Music highlight from Adam Buxton and Attack the Block director Joe Cornish.
Clearly something 'royalty free.'
Thanks to Superhero Hype for the webisode.