Marshall and Lily keep thinking they see Barney's Doppleganger which, they agreed in the last episode, will be the Universe's sign that it's time to start trying to have a baby. Robin says goodbye to Don. Best of all, Ted goes blond!
The whole gang heads to Cleveland for Punchy's wedding where the crowd eagerly anticipates Ted's emotional toast. Lily tries to keep her pregnancy a secret and Robin wonders if she's really done with Barney.
Barney and Ted battle to push the button to blow up the Arcadian; Barney and Robin battle against Ted reuniting with Zoey; Marshall battles against and anticipated stomach poisoning and we get some good dramatic news at the end.