Roswell (1999) - 3x07 - Interruptus

After their idyllic wedding, Isabel and Jesse are stalked on their honeymoon by her alien lover Kivar who plots to take her back to their home planet. Learning of this, Max and Michael arrive intent on destroying the alien. Meanwhile, Liz and Maria discover that Philip has begun a secret investigation of Max, including the diappearance of Tess, and he's embroiling Liz's dad into the whole thing.