Two years after its premiere, American Rust is returning for its long-awaited second season. The new batch of episodes drops on Prime Video on Thursday, March 28, and will showcase the aftermath of Isaac's (David Alvarez, West Side Story) near-confession. After fleeing Buelle at the beginning of season 1, Isaac returns in the finale with the wrench he used to kill Pete. However, understanding that Isaac was trying to protect Billy, Del orders him to hide the murder weapon.
https://screenrant.com/american-rust-season-2-dan-futterman-adam-rapp-interview/