https://www.gamespot.com/articles/fortnite-high-stakes-update-challenges-and-rewards/1100-6461597/

After a slight delay, Fortnite's 5.40 update has finally arrived on PS4, Xbox One, PC, Nintendo Switch, and mobile. Along with introducing another new item to Battle Royale, the Grappler, the patch marks the start of the High Stakes event, which features a new limited-time mode and its own set of challenges to complete. Aside from the standard newly added Week 9 challenges, here's what the rewards are that you can earn from taking part in High Stakes.

The High Stakes challenges are tied to the new LTM, Getaway. Unlike a typical game of Battle Royale, this heist-themed mode divides players into teams of four, with the objective being to find one of the four safes scattered around the island, extracting the (appropriately llama-shaped) jewel housed within, and making it safely to the getaway van.