While there are several television episodes titled the most prominent matches for Season 4, Episode 1 are from the procedural drama FBI and the reality series The Curse of Oak Island (though the latter's episode of that title is actually the seventh of its fourth season).
Below is a formal summary of the Season 4 Premiere, which fits your specific S4E1 criteria. [S4E1] All That Glitters
Originally from FBI: Most Wanted , Crosby is central to this episode as he pursues a former comrade. While there are several television episodes titled the
The team searches for the "Chappell Vault," a legendary concrete-covered wooden treasure vault located deep underground. The team searches for the "Chappell Vault," a
In this episode, the Lagina brothers conduct a massive second dig in the Money Pit and find potential evidence of a shipwreck in the swamp.
Takes a lead role in bridging the investigation between the veteran suspect and the broader trafficking ring.