"NCIS" has been on television since 2003, with 20 seasons and over 450 episodes. Two episodes, "Gut Punch" and "First Steps," are tied for the lowest rating on IMDb, with 6.9 out of 10. However, opinions on the worst episode vary on Reddit. Some fans consider "Dog Tags" from Season 5, where Abby's concern for a dog is seen as out of character, to be the worst. Other episodes mentioned include "Out of the Frying Pan" and "Misconduct." Discussions about the worst episodes of "NCIS" will continue among fans.