HBO is bringing the most famous cross-country road trip in U.S. history to the small screen with its latest miniseries Lewis and Clark.

The network announced on Friday that it has greenlit the six-hour series, which will star Casey Affleck as  Meriwether Lewis. Joining the Massachusetts native will be Belgium actor Matthias Schoenaerts as William Clark. 

The upcoming project is being backed by a stacked group of executive producers, including Tom Hanks, Edward Norton, and Brad Pitt, which isn’t too shabby.

As for the tone of the miniseries, perhaps HBO’s latest duo will take a page from True Detective‘s Rust Cohle and Marty Hart. As one Twitter user suggested, True Explorer anyone?

Lewis and Clark is based on Stephen E. Ambrose’s book Undaunted Courage and is set to premiere this summer.