Fiona gets into a surprising love triangle and experiences some character-building growing pains; Frank falls in love with a dying doctor; Lip commits himself to college life and becomes romantically involved with a mentor; Ian and Mickey struggle to manage Ian's bi-polar disorder; Sammi remains a serious thorn in everyone's side; Debbie becomes a woman in more ways than one; Carl gets in serious trouble with the law; Kev and V experience a rough patch.
