WARNING: This article contains spoilers for Siren season 2 episode 10. Read at your own risk.

Siren season 2 episode 10 is arriving this week, and fans will somehow learn a little bit of a history lesson here. The title of the upcoming episode is "All In" and it would uncover some backstory, which could change how fans view some characters forever. Aside from that, the mother of Ben, Elaine, is facing a lot more medical troubles.

Based on the synopsis of Siren season 2 episode 10, Helen and Rick will learn more about the hybrid status, as well as their history in Bristol Cove. They also discovered that they are far less than alone that Helen previously thought.

Meanwhile, Elaine Pownall's health keeps on worsening, so she seeks treatment from the medical trial of the military using mermaid cells, yet the procedure has side effects to mermaids. So, Ryn is also at risk in this episode as it can be recalled she's the one who willingly goes on with the trial as she believed this is only the best way to help Ben's mother.

Thus, Ben and Maddie will do everything they can to support Ryn in every step of the way. Moreover, the side effects might be surprising and severe, so everyone should be prepared with the unexpected happenings. Perhaps, the events in Siren season 2 episode 10 just scratch the surface of what's coming next, such as some characters finding their proper place in the world and the preservation of mermaids.

What's interesting about this show is that it also features voices screaming out from the ocean in pain - like hunger and pollution. The producers of Siren probably realized that the series could offer more opportunities to tackle such subjects that are prevalent in the real world.

Meanwhile, fans should not worry as Freeform renewed Siren for a third season. The network confirmed it would bring back the show, along with another exciting batch of episodes which would likely air around 2020. It's worth mentioning that the program is one of the pricier shows in Freeform, largely because of its special effects.

Siren is also one of the network's more-popular series in terms of women 18-49 and adults 18-49, which were reportedly two of their core demographics. So, the renewal announcement doesn't come as a surprise to many.

Siren season 2 episode 10 will air on Thursday, June 20, on Freeform.