<P> There are several major additional characters introduced by the television series and numerous narrative details and the plotline differ radically from the source novel . For example , the planned Nazi pre-emptive nuclear strike on Japan , `` Operation Dandelion , '' is apparently being prevented only by Hitler 's personal refusal to authorise it , leading Heydrich and the faction demanding pre-emptive war to plot the Führer 's assassination . In addition , Hawthorne Abendsen does not appear in the first season of the television version and The Grasshopper Lies Heavy is a series of newsreel films depicting multiple alternative realities rather than a novel ( although this idea may actually be borrowed from Dick 's later novel Valis which features a mysterious film depicting yet another dystopian alternative history of the USA ) . As of the Season 1 finale , these films are being tracked down by SS agents like Blake for dispatch to Hitler for an as - yet - unknown purpose . </P>
what do the films mean in high castle
as - yet - unknown purpose