The tag line for the awesomely hilarious Army of Darkness (1993) says it best: “Trapped in time, surrounded by evil, low on gas.” That’s gosh-darned funnier than all heck.
Ash gets sucked into a swirly time portal after battling the evil dead in Evil Dead 2: Dead By Dawn (1987). He and his 1973 Oldsmobile are dropped from the sky into a back in time land currently being plagued by, yep, more evil dead.
Having lost his hand by his own hand (heh) in Evil Dead 2 and having replaced it with a chain saw, Ash reluctantly joins forces with the local king to battle the dead after Ash himself accidentally invokes them. See, Ash’s only way home is with the Necronomicon, a demonic book whose cover is made of human flesh (instead of preferred edible cardboard).
He has to go into the fog-shrouded Land of the Dead to get it, utter an incantation (which he hilariously screws up), and then haul future buttock back to the castle to say his click your heels three times goodbyes.
The Deadites (great name) want their book back, Ash is stuck, and everyone hates his guts. This thing is loaded with awesome evil dead demons, a ton of Three Stooges pratfalls, and an endless stream of classic Ash retorts: “Hail to the King, baby!,” “Gimme some sugar, baby,” and the timelessly brilliant: “Alright you primitive screwheads, listen up…”
Ash/Bruce Campbell is the Marlon Brando of all things evil and dead.