You and Heimdall were working together to save the people of Asgard from Hela, which meant gathering them and taking them to this secret fortress in the mountains. One that Hela, hopefully couldn't find.

There were no promises in that matter.

Thor was off in Sakaar with Loki, Bruce and Valkyrie, so you both had to do the work without getting caught by the guards.

And right now, you just fought off some, that were trying to capture what appeared to be four kids and an adult.