OK. This is a fun film. Caterpillar D9 gets possessed, starts killing workers. But, what the hey, wasn't it great to see Clint Walker, Carl Betz and Neville Brand again? Eerie? Yeah, kinda. Spooky? Not unless you bought into it a lot more than I did. Liked the scene where Betz holds the D niner (glad to hear some construction worker ex-militaris speak here) at bay with a steam(?) shovel. Scary? Not really. But, fun...and it was great to see Carl, Clint and Neville again. BTW, this non-videoed TVdrama became a kind of campus cult classic for a while. Check it out.