Youngblood, Vol. 1 was the first comic series produced within the Extreme Universe. Starring the titular Youngblood, the series chronicled the adventures of this government super team.
Originally a 4 issue mini-series (with an Issue #0 as well), the comic was expanded to 5 issues (the last featured as a back-up in Brigade, Vol. 1 - Issue 04). After a short hiatus, it returned and ran a total of 10 issues before starting again in Youngblood, Vol. 2.