  We present a study of the dynamics in B0 --> K+ K- K0S decays with
approximately 230 million BBbar events collected by the BABAR detector at SLAC.
We find that the Dalitz plot distribution is best parameterized with the phi
K0S mode, an S-wave K+ K- resonance near 1500 MeV/c^2, and a large non-resonant
contribution. We set limits on resonances not included in our model, and study
models for the non-resonant contribution.
