After four years of courting, Alyssa and Tucker are about to tie the knot. However, suddenly the usually easy going Tucker becomes obsessed with every minute detail of the wedding planning, confusing his friends and family with his high strung antics. Unbeknownst to Tucker, he has come down under the spell of his grandmother's very unique engagement ring.
Mattilynn Dupree is back in her home town for her sister’s wedding, re-evaluating her life after missing out on the promotion she always wanted. She runs into an old friend, Jake, in her Dad’s auto mechanic shop and is given a reason to stay. But her ex-boyfriend comes to town to get her back, and her boss calls to lure her away with the promise of a better job, so she’s torn between the life she thought she always wanted and the one that she’s fallen in love with all over again.
The Autobots continue to work for NEST, now no longer in secret. But after discovering a strange artifact during a mission in Chernobyl, it becomes apparent to Optimus Prime that the United States government has been less than forthright with them.