De romantische herberg van het koppel Mick en Olivia is een populaire trouwlocatie geworden. Mick en Olivia hebben de behoefte er even tussenuit te gaan en staan op het punt te vertrekken. Het koppel moet hun plannen echter wijzigen wanneer de bruid voor de volgende trouwerij eerder voor de deur staat. Daarnaast komen de dochter en schoonzoon van Olivia onverwachts langs. Zij onthullen dat ze willen trouwen.
Nee, helaas is Wedding March 4: Something Old, Something New nog niet beschikbaar op Netflix in Nederland.
| Directing | Peter DeLuise | Director |
| Writing | Robin Jill Bernheim | Writer |
| Writing | Richard Manning | Writer |
| Writing | David Golden | Writer |
| Writing | Tracy Andreen | Writer |
| Production | Vince Balzano | Associate Producer |
| Production | Susie Belzberg Krevoy | Executive Producer |
| Production | Doran S. Chandler | Supervising Producer |
| Production | Peter DeLuise | Executive Producer |
| Production | Jamie Goehring | Producer |
| Production | Eric Jarboe | Executive Producer |
| Production | Amy Krell | Executive Producer |
| Production | Brad Krevoy | Executive Producer |
| Production | Kevin Leslie | Producer |
| Production | Nathaniel Lyman | Associate Producer |
| Production | Linda L. Miller | Executive Producer |
| Production | B.F. Painter | Supervising Producer |
| Production | Amanda Phillips | Executive Producer |
| Production | Michael Shepard | Supervising Producer |
| Production | Jonathan Shore | Supervising Producer |
| Production | Jimmy Townsend | Executive Producer |
| Directing | Kevin Leslie | First Assistant Director |
