The Tunnel: Sabotage

Season overview

Topic: "The Tunnel" Season 2.
Constraint 1: Use ONLY provided SYNOPSIS and SOURCES.
Constraint 2: Output ONLY valid JSON.
Constraint 3: No markdown, no asterisks, no headings, no bullet points in the text (though the JSON structure requires an array for the primer).
Constraint 4: Overview must be 160-220 words.
Constraint 5: Primer must be an array of exactly 4 concise bullet points (represented as strings in the JSON array).
Constraint 6: No invented details.
TMDB Synopsis: Elise Wassermann and Karl Roebuck investigate the abduction of a French couple from the Eurotunnel. The case is complicated by a plane crash into the Channel.
Source [1]: Detectives Karl Roebuck and Elise Wassermann work together to find a ser... (cut off).
Source [2]: Irrelevant (Robert Towne obituary).
Source [3]: Detectives Karl Roebuck and Elise Wassermann investigate the death of a French politician in Folkestone and Calais. They are in an uneasy partnership seeking a politically-motivated serial killer.
Overview Construction:
The second season of The Tunnel features detectives Karl Roebuck and Elise Wassermann as they return to investigate a new criminal case. The investigation begins when a French couple is abducted from the Eurotunnel. This specific case becomes increasingly complicated due to a plane crash into the Channel. The detectives must navigate these unfolding events as they work to resolve the situation involving the missing couple. Based on previous developments, the pair has worked together in Folkestone and Calais, where they were previously called to investigate the death of a French politician. During that prior investigation, a shocking discovery at the crime scene forced the two detectives into an uneasy partnership. They were tasked with seeking out a politically-motivated serial killer who had drawn them into his own personal agenda. In this new season, Roebuck and Wassermann continue their professional involvement in high-stakes investigations involving international incidents and criminal activity within the region.
Word Count Check (Overview):
"The second season of The Tunnel features detectives Karl Roebuck and Elise Wassermann as they return to investigate a new criminal case. The investigation begins when a French couple is abducted from the Eurotunnel. This specific case becomes increasingly complicated due to a plane crash into the Channel. The detectives must navigate these unfolding events as they work to resolve the situation involving the missing couple. Based on previous developments, the pair has worked together in Folkestone and Calais, where they were previously called to investigate the death of a French politician. During that prior investigation, a shocking discovery at the crime scene forced the two detectives into an uneasy partnership