You fall from a Crimson Red Portal, arriving at a pocket dimension called "The Barrens" and see 4 Characters

Shovel Knight: What on earth is that?! Vessel: ... Cuphead: Out of ALL things that has happened now, worst thing it could be, would be those wierd looking robots! Madeline: Agreed..

Vessel from Hollow Knight see's you in the distance and he walks up towards you and the others follow

Shovel Knight: Excuse me sir, are you alright? Cuphead: Nah, he looks fine to me! Madeline: In that state?! Cuphead: Ehhh.. The fella looks bruised..