The show was praised for its . The action sequences were inventive, and the science segments were genuinely interesting. Many critics noted that when the show focused on team dynamics and clever problem-solving, it was among the best network action shows on television.
The final two seasons faced unprecedented challenges. The COVID-19 pandemic shut down production, forcing Season 4 to end early with a cliffhanger. When the show returned for a shortened fifth and final season, the tone had shifted. Mac had matured into a hardened leader.
Despite low critical scores (25% on Rotten Tomatoes ), the show was praised by some as "pure, escapist entertainment" that successfully updated the brand for a new generation.