This science plan for a U.S. GLOBEC program in the California Current System developed from initial discussions held at a small workshop in San Francisco in January 1993-P. Ted Stub and John Hunter, conveners. Subsequently, a rather large writing team, chaired by P. Ted Strub, was formed to produce this document. Contributors to this document were David Ainley, Jack Barth, Hal Batchelder, Tim Baumgartner, Loo Botsford, Tim Cowles, Jim Eckman, Peter Franks, Steven Gaines, Dennis Hedgecock, Anne Hollowed, George Hunt, Ron Lynn, David Mackas, Mark Ohman, Bill Peterson, Tom Powell, Frank Schwing, Paul Smith, and Ted Strub.