In most types of civil cases, a plaintiff has 90 days after s/he files the complaint with the court to complete “service of process” on each defendant.  If a plaintiff does not complete service of process within 90 days and cannot show the court good cause (good reason) why service was not completed, the court is allowed to dismiss the case against each defendant who is not served.  If a plaintiff needs more than 90 days to complete service of process on a defendant, the plaintiff must go back to the court before the end of the 90 days and ask a judge to grant more time by filing a motion (a formal written request to the court) asking for additional time.