Complete story — includes the ending
An FBI investigation into a computer hacking scam, which taps into a bank's system to gain access to customer's identities and financial assets, becomes personal for Don when the Russian mob spearheading it comes after him and threatens the safety of Charlie and Alan. Will Patton returns as LAPD Lt. Gary Walker; David Aaron Baker also guest stars. Mathematics used: Explicit and implicit functions, geometric progression and exponential growth. Neil Sloane's Integer Sequence Database was also used.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, Numbers season 2. HTML formatting and reference markers removed. · Content license