“The Bachelor” will turn into a family affair on Monday. No, it’s not Hometown Dates just yet, but Chris Soules’ three sisters will be visiting to help their brother find love.

Only 15 contestants remain in Season 19 -- Ashley I., Ashley S., Becca, Britt, Carly, Jade, Jillian, Juelia, Kaitlyn, Kelsey, Mackenzie, Megan, Nikki, Samantha and Whitney. Episode 4 will kick off with the 33-year-old Iowa farmer embarking on a beach group date with eight of the women. The gals will spend the afternoon in their bikinis (or less) trying to catch the bachelor’s attention. But host Chris Harrison has an interesting twist to heat things up even more – the group date will turn into an overnight date! Instead of returning to the mansion, Chris and the ladies will camp at the lake for the night. Viewers can expect campfire songs, s’mores … and a sexy late night “make-out session.”

While Chris gets some action by the water, the seven remaining women will get a fun surprise when the bachelor’s sisters swing by. The synopsis for episode 4 teases that they’ll “interrogate the bachelorettes” in order to help their brother find a wife, and will choose one lucky girl to spend a romantic date with him. Chris and his mystery date will spend the night dancing and watching an advanced screening of Disney’s upcoming live-action “Cinderella” movie. It seems like a fairytale evening … however this “shy” contestant is hiding a big secret.

The final group date of the episode will relocate Chris and six of the bachelorettes to San Francisco. The ladies will be donning wedding dresses and competing in a mud race. However Chris won’t spend the whole day with the six women. Whoever wins the race will get to spend the rest of the night with the bachelor while the others are forced to return the mansion.

Drama will ensue during the cocktail party when one contestant pulls Chris aside to talk about the “eye-opening message she delivered at the campsite.” Meanwhile, another woman will question Chris’ decisions, finding it hard to understand some of the ladies that he “considers rose-worthy.” But it will be the final moments of “The Bachelor” episode 4 that fans won’t want to miss. A jealous contestant will accuse Chris of not being on the show “for the right reasons.”

By the end of the night only 11 women will remain in the running. Who will get roses? And who will be sent home? Watch episode 4 of “The Bachelor” when it airs on ABC on Monday, Jan. 26, at 8 p.m. EST.