During the studio recorded episode the couples meet for the first time to discuss the most intense caught-on-camera moments from the season.
Partners who are unable to join their significant other in person, are patched in on video call.
Host Shaun Robinson sits down with the couples, to find out the status of their relationship, and no question is off-limits.
Speaking to Channel24, Discovery has confirmed that there are no immediate plans to cancel the highly anticipated reunion show, despite on-going coronavirus concerns.
"It is currently planned for 18 June and will follow the week after the season finale of the show. There is very little risk of it being cancelled as it could potentially take place virtually real-world circumstances don't allow for in-studio filming," said the statement.
Watch 90 Day Fiancé: Before The 90 Days season 4 Thursdays at 20:00 on TLC with repeat episodes streaming on DStv Catch Up.