https://www.gamespot.com/articles/fortnites-new-getaway-mode-completely-changes-the-/1100-6461528/

[UPDATE] During the livestream, Epic showed off the new mode, skins, and grappler gun for the first time. You can see a replay of the segment in the video below, from YouTube account Fortnite Cookies. Four safes are loaded in supply drops scattered throughout the map. You and three others must work together to find the safes, extract the valuable item inside (it's a jewel llama, of course), and then get to the extraction zone without dying. You're doing this all the while fighting to stay alive against other teams of players. As for the Grappler gun, it works just like you'd imagine; you fire it at a wall and it sends you soaring in that direction. The new mode and the Grappler gun look like they could change things up significantly.

This arrives as part of the High Stakes event update this week. However, that update has been delayed until Thursday, which means Week 9 challenges won't go live until Friday.