"First Strike" earned a household rating of 1.5, representing just below 2 million viewers; 1.1 million from the 25-54 demographic, and 986,000 from the 18-49 demographic. It was the strongest rating for the series since the 1.6 rating from "The Return, Part 1".
"First Strike" achieved a household viewership of 1.5 million viewers, with 1.1 million coming from the 25-54 age group and 986,000 from the 18-49 demographic. This was the highest rating for the series since "The Return, Part 1" garnered a 1.6 rating.