From what TELETOON says:

Caitlin's sixteenth birthday is weeks away and she is making HUGE plans
to ensure that it will be the biggest event anyone has ever attended. A
new and improved Tricia shows up, attempting to convince Caitlin to give
their friendship one more try by throwing a joint Sweet Sixteen party.
Much to the gang's chagrin, Caitlin re-friends her former 'frenemy'.
Things seem to be rolling along just fine, until Caitlin and Tricia
discover they are both hot for the same guy - at which point things go
downhill fast! Will Caitlin get her party and her guy and what is Jude
doing at the ice rink?