: ALIE demonstrates that a person's greatest weakness isn't physical pain, but the threat to their loved ones.

: The group reaches the coast but finds only rocks. Jasper accidentally discovers that green fire is the signal needed to summon Luna’s people.

For more detailed analysis, you can read expert reviews on Den of Geek or Telltale TV . The 100 Review: Join or Die (Season 3 Episode 13)

: Flashbacks show Pike teaching the original 100 delinquents survival skills before they were sent to Earth.

: While imprisoned, Murphy gains critical information that may help him survive the chaos. 2. The Search for Luna

In this episode, the threat of ALIE spreads to Polis, forcing characters to make impossible choices between submission and physical suffering. Meanwhile, Clarke’s group searches for the elusive Luna, hoping she is the key to stopping the AI. 1. The Fall of Polis