Thor Battling The Black Order
When Infinity War starts, the Asgardians have already been defeated. This piece gives us a look at the God of Thunder doing everything he can to stop it while Thanos has Loki in the same spot we eventually saw him wind up in when the film begins.
Destruction of the Ark
In both of these pieces, we see what would inevitably end up in the movie, but in much more detail.
This shows the ark that the Asgardians believed would be their safe haven from the destruction that happened to their home realm at the end of Thor: Ragnarok. Instead, Thanos would come for the Space Stone and destroy their ship on his way out.