Los Angeles, California - Bachelor Nation's hottest singles hit the beach in the dramatic premiere of Bachelor in Paradise season 10, promising another wild ride for the franchise's messiest spin-off.

Monday night's premiere welcomed the first batch of former contestants from both The Bachelor and The Bachelorette.

As expected, most stars came from the latest seasons – think Grant, Jenn, and Joey.

But season 10 is ready to shake things up, as the show has changed its signature location to a Costa Rican resort (RIP to the iconic staircase...) and added former Bachelorette Hannah Brown – who is offering her help in "Bachelor Relations."

The show has also taken on a notably different aesthetic – one that has already gotten fans quite up in arms on social media.

Alas, there was at least plenty of drama to make up for it. This week, the ladies were given the power to distribute the roses, thus deciding who would get to stay in Paradise.

First to properly secure a connection were Jess (Joey's season) and Spencer (Jenn's season), who shared the first smooch of the season after a swoon-worthy trauma dumping session.

Justin (Katie's season and season 8 of Paradise) was awarded the first date card, but while he was ready to set up a moment with Lexi (Joey's season), stormy weather forced everyone back into their hotel rooms for the night.

On Day 2, the group was joined by Dale – who famously won over Bachelorette Clare Crawley so quickly she cut the season short.

With that romance in the past, he's ready for new connections, and he picked Kat – fresh off a broken engagement from last season of Paradise – for his first date.

Dale's decision to pick Kat sparks a little envy from the other ladies (particularly Zoe, of Grant's season fame), but the pair didn't let much get them down on their kiss-heavy boat date – except for Kat's bout of seasickness, that is.

Meanwhile, the main group took on some new "chemistry tests," but things got pretty heated when Ricky mocked Hakeem (both from Jenn's season) for being too "vanilla" during a game exploring everyone's red flags.

That mess aside, Sam M. (also from Jenn's season) then joined the pack, quickly sparking up even more drama by handing his date card to Jess.

Yep, we've got a Week 1 love triangle!

But with the ladies in charge, she had to cut it short with a big choice. To the rose ceremony we go!

The decision didn't appear to be easy for Jess, but she ultimately stuck by her first flame and handed her rose to Spencer.

Also struggling to pick was Bailey (Grant's season), who gave her rose to Jeremy (Jenn's season) over Kyle (Katie's season).

Rounding out the new couples were:

• Alexe (Grant's season) and Jonathon (Jenn's season)
• Zoe and Brian (Jenn's season)
• Kat and Dale

And with that, our fighting friends Hakeem and Ricky both had to pack their bags, along with Sam and Kyle.

Lest we forget, there's only one more episode before the real bombshells hit Paradise – The Goldens!

Bachelor in Paradise continues next Monday, July 14, at 8 PM ET, airing on ABC and streaming the next day on Hulu.