Under typical scaling, the last passage time field of the directed last passage percolation model with exponential site distributions converges to the KPZ fixed point. In this talk, we consider an atypical scenario in which the last passage time to a specific site is unusually large and explore how the last passage time field changes under this one-point upper large deviation event. We study a conditional law of large numbers and compute the limiting fluctuations in certain regimes. Our proofs rely on an analysis of explicit multi-point distributions. This talk is based on joint work with Jinho Baik and Dylan Cordaro.