Corporate forces Michael to choose a cheaper health plan. To avoid being the "bad guy," Michael delegates the task to Dwight, who takes the responsibility far too seriously.
Dwight slashes benefits "to the bone" to save money and demands employees disclose their private medical history on a sign-up sheet. [S1E3] The New Office
Michael spends the day promising a "big surprise" to make up for the bad news. After failing to book a coal mine tour or find anything substantial, the "surprise" ends up being individual ice cream sandwiches. Other Shows with this Episode Title Corporate forces Michael to choose a cheaper health plan
If you are looking for a guide on a specific episode actually titled you are likely thinking of: Michael spends the day promising a "big surprise"
In this 2013 sitcom episode, a new office opens on the top floor. The plot follows Brody as he tries to beat his rival, Threepeat, to secure the office while Jenny worries about his competitive streak. Let me know so I can tailor the guide to your needs. Health Care in the Office Field Guide - S1E3
To annoy Dwight, Jim and Pam submit fake medical conditions for the new plan, including "hot dog fingers," "spontaneous dentohydrogenosis," and "nanobot infection".