You can watch this episode on IMDb and explore it on the Grimm Wiki . Episode Discussion - S01E13 - "Three Coins in a Fuchsbau"
In the Grimm episode " Three Coins in a Fuchsbau " (S1E13), Detective Nick Burkhardt handles a deadly robbery case involving the "Coins of Zakynthos," ancient, addictive items that cause extreme charismatic behavior in those who possess them. The investigation unveils a connection to the death of Nick’s parents and features a visiting Steinadler seeking the artifacts for himself. Ultimately, Nick secures the dangerous items, and the episode reveals a historical link between the coins and Adolf Hitler. [S1E13] Three Coins in a Fuchsbau