<Tr> <Th> 74 </Th> <Td> 8 </Td> <Td> "Chupacabra" </Td> <Td> Aaron Lipstadt </Td> <Td> Brenna Kouf </Td> <Td> December 12, 2014 (2014 - 12 - 12) </Td> <Td> 408 </Td> <Td> 5.07 </Td> </Tr> <Tr> <Td_colspan="8"> <P> An unsuspecting traveler brings a blood - sucking cryptid--the legendary "El Chupacabra"--to Portland, and Nick and Hank investigate . Wu confronts Nick about what he has seen about the Grimm Books and Nick's odd behavior . Monroe and Rosalee prepare to embark on their honeymoon, but are threatened once again by the Wesenrein . </P> <P> Opening quote: "Cuide su rebaño, nunca deje su lado . Cuide su sangre, el Chupacabra tiene hambre ." </P> ("Take care of your flock, never leave their side . Watch your blood, for the chupacabra is hungry .") </Td> </Tr> <P> An unsuspecting traveler brings a blood - sucking cryptid--the legendary "El Chupacabra"--to Portland, and Nick and Hank investigate . Wu confronts Nick about what he has seen about the Grimm Books and Nick's odd behavior . Monroe and Rosalee prepare to embark on their honeymoon, but are threatened once again by the Wesenrein . </P> <P> Opening quote: "Cuide su rebaño, nunca deje su lado . Cuide su sangre, el Chupacabra tiene hambre ." </P>

What episode does nick regain his grimm powers