Disney+ 'Loki' trailer sets up a reality-twisting adventure that ties back to 'Avengers'

Loki looks like it'll be a treat for Marvel fans. This expansive new trailer for the upcoming Disney+ series lays out some of what to expect from Tom Hiddleston's first, big solo venture as the MCU's most mischievous Asgardian. 

Apparently, Loki's previous Evil Plot(TM) involving the Tesseract — which as we all now know was...